build 039: complete Quotes Feed migration foundation

app/src/integrations/exchange/market_cache.py

@@ -2,85 +2,42 @@
 
 from __future__ import annotations
 
-import time
-from dataclasses import dataclass
-from datetime import datetime
-from zoneinfo import ZoneInfo
-
-from src.core.config import load_settings
+from src.market_data.acquisition.models.quote import Quote
+from src.storage.quote_store import InMemoryQuoteStore, QuoteStoreProtocol
 
 
-@dataclass(slots=True)
-class MarketPriceSnapshot:
-    symbol: str
-    price: float
-    bid_price: float | None
-    ask_price: float | None
-    updated_at: str
-    source: str = "market-cache"
-    runtime_key: str = "default"
-    received_monotonic: float = 0.0
-
-    def age_seconds(self) -> float:
-        if self.received_monotonic <= 0:
-            return 999999.0
-
-        return max(0.0, time.monotonic() - self.received_monotonic)
-
-    def has_bid_ask(self) -> bool:
-        return (
-            self.bid_price is not None
-            and self.ask_price is not None
-            and self.bid_price > 0
-            and self.ask_price > 0
-        )
+_MARKET_PRICE_CACHE_SOURCE_NAME = "legacy-market-price-cache"
 
 
 class MarketPriceCache:
-    _prices: dict[tuple[str, str], MarketPriceSnapshot] = {}
+    # Временный compatibility facade над каноническим Quote Store.
+    _store: QuoteStoreProtocol = InMemoryQuoteStore()
 
     @classmethod
-    def _key(cls, *, symbol: str, runtime_key: str = "default") -> tuple[str, str]:
-        return runtime_key.strip().lower(), symbol.upper()
-
-    @classmethod
-    def set_price(
+    def set_quote(
         cls,
+        quote: Quote,
         *,
-        symbol: str,
-        price: float,
-        bid_price: float | None = None,
-        ask_price: float | None = None,
-        updated_at: str | None = None,
-        source: str = "market-polling",
         runtime_key: str = "default",
     ) -> None:
-        settings = load_settings()
-
-        if updated_at is None:
-            updated_at = datetime.now(ZoneInfo(settings.tz)).strftime("%d.%m.%Y %H:%M:%S")
-
-        normalized_runtime_key = runtime_key.strip().lower()
-
-        cls._prices[cls._key(symbol=symbol, runtime_key=normalized_runtime_key)] = MarketPriceSnapshot(
-            symbol=symbol.upper(),
-            price=float(price),
-            bid_price=float(bid_price) if bid_price is not None else None,
-            ask_price=float(ask_price) if ask_price is not None else None,
-            updated_at=updated_at,
-            source=source,
-            runtime_key=normalized_runtime_key,
-            received_monotonic=time.monotonic(),
+        cls._store.set(
+            _MARKET_PRICE_CACHE_SOURCE_NAME,
+            quote,
+            runtime_key=cls._normalize_runtime_key(runtime_key),
         )
 
     @classmethod
-    def get_price(
+    def get_quote(
         cls,
         symbol: str,
         *,
         runtime_key: str = "default",
-    ) -> MarketPriceSnapshot | None:
-        return cls._prices.get(cls._key(symbol=symbol, runtime_key=runtime_key))
+    ) -> Quote | None:
+        return cls._store.get(
+            _MARKET_PRICE_CACHE_SOURCE_NAME,
+            cls._normalize_symbol(symbol),
+            runtime_key=cls._normalize_runtime_key(runtime_key),
+        )
 
     @classmethod
     def clear(
@@ -89,23 +46,24 @@ class MarketPriceCache:
         *,
         runtime_key: str | None = None,
     ) -> None:
-        if symbol is None and runtime_key is None:
-            cls._prices.clear()
-            return
+        cls._store.clear(
+            source_name=_MARKET_PRICE_CACHE_SOURCE_NAME,
+            symbol=(
+                cls._normalize_symbol(symbol)
+                if symbol is not None
+                else None
+            ),
+            runtime_key=(
+                cls._normalize_runtime_key(runtime_key)
+                if runtime_key is not None
+                else None
+            ),
+        )
 
-        if symbol is not None and runtime_key is not None:
-            cls._prices.pop(cls._key(symbol=symbol, runtime_key=runtime_key), None)
-            return
+    @staticmethod
+    def _normalize_symbol(symbol: str) -> str:
+        return str(symbol).strip().upper()
 
-        keys_to_delete = []
-
-        for key_runtime, key_symbol in cls._prices.keys():
-            if runtime_key is not None and key_runtime == runtime_key.strip().lower():
-                keys_to_delete.append((key_runtime, key_symbol))
-                continue
-
-            if symbol is not None and key_symbol == symbol.upper():
-                keys_to_delete.append((key_runtime, key_symbol))
-
-        for key in keys_to_delete:
-            cls._prices.pop(key, None)
+    @staticmethod
+    def _normalize_runtime_key(runtime_key: str) -> str:
+        return str(runtime_key).strip().lower()

app/src/integrations/exchange/market_data_runner.py

@@ -13,6 +13,12 @@ from src.core.types import JsonDict, NumericLike
 from src.integrations.exchange.market_cache import MarketPriceCache
 from src.integrations.exchange.service import ExchangeService
 from src.integrations.exchange.ws_client import ExchangeWebSocketClient
+from src.market_data.acquisition.adapters.dzengi.websocket import (
+    DzengiWebSocketQuoteAdapter,
+)
+from src.market_data.acquisition.exceptions import (
+    MarketDataAcquisitionError,
+)
 from src.trading.journal.service import JournalService
 
 
@@ -297,6 +303,7 @@ class MarketDataRunner:
 
         valid_payload_count = 0
         invalid_payload_count = 0
+        adapter = DzengiWebSocketQuoteAdapter()
 
         async for payload in ExchangeWebSocketClient().stream_depth(
             ws_symbol,
@@ -306,20 +313,31 @@ class MarketDataRunner:
             if current_symbol and current_symbol != symbol:
                 break
 
-            best_bid = cls._extract_best_price(payload, "bids")
-            best_ask = cls._extract_best_price(payload, "asks")
-
-            if best_bid is None or best_ask is None:
+            try:
+                quote = adapter.map_message(payload)
+            except MarketDataAcquisitionError:
                 invalid_payload_count += 1
 
                 if invalid_payload_count >= 5:
                     raise RuntimeError(
-                        "WebSocket depth stream does not contain valid bids/asks."
+                        "WebSocket depth stream does not contain valid quotes."
+                    )
+
+                continue
+
+            if quote.symbol.strip().upper() != cache_symbol.strip().upper():
+                invalid_payload_count += 1
+
+                if invalid_payload_count >= 5:
+                    raise RuntimeError(
+                        "WebSocket depth stream returned another symbol."
                     )
 
                 continue
 
             invalid_payload_count = 0
+            best_bid = float(quote.bid_price)
+            best_ask = float(quote.ask_price)
 
             if valid_payload_count == 0:
                 should_log_connected = (
@@ -354,12 +372,8 @@ class MarketDataRunner:
 
             valid_payload_count += 1
 
-            MarketPriceCache.set_price(
-                symbol=cache_symbol,
-                price=(best_bid + best_ask) / 2,
-                bid_price=best_bid,
-                ask_price=best_ask,
-                source=f"ws_depth:{context.runtime_key}",
+            MarketPriceCache.set_quote(
+                quote,
                 runtime_key=context.runtime_key,
             )
 

app/src/integrations/exchange/market_stream.py

@@ -12,6 +12,12 @@ from src.core.types import JsonDict, NumericLike
 from src.integrations.exchange.market_cache import MarketPriceCache
 from src.integrations.exchange.service import ExchangeService
 from src.integrations.exchange.ws_client import ExchangeWebSocketClient
+from src.market_data.acquisition.adapters.dzengi.websocket import (
+    DzengiWebSocketQuoteAdapter,
+)
+from src.market_data.acquisition.exceptions import (
+    MarketDataAcquisitionError,
+)
 from src.trading.journal.service import JournalService
 
 
@@ -145,6 +151,7 @@ async def start_market_stream() -> None:
 
             symbol = validation.normalized_symbol
             client = ExchangeWebSocketClient()
+            adapter = DzengiWebSocketQuoteAdapter()
 
             journal.log_info(
                 "market_ws_started",
@@ -153,29 +160,16 @@ async def start_market_stream() -> None:
             )
 
             async for message in client.stream_depth(symbol):
-                event = _extract_market_event(message)
-
-                if event is None:
+                try:
+                    quote = adapter.map_message(message)
+                except MarketDataAcquisitionError:
                     continue
 
-                price = safe_float(event.get("price"))
-                bid_price = safe_float(event.get("bid_price"))
-                ask_price = safe_float(event.get("ask_price"))
-
-                if price is None or bid_price is None or ask_price is None:
+                if quote.symbol.strip().upper() != symbol.strip().upper():
                     continue
 
-                MarketPriceCache.set_price(
-                    symbol=symbol,
-                    price=price,
-                    bid_price=bid_price,
-                    ask_price=ask_price,
-                    updated_at=(
-                        str(event.get("updated_at"))
-                        if event.get("updated_at") is not None
-                        else None
-                    ),
-                    source="ws_market_stream",
+                MarketPriceCache.set_quote(
+                    quote,
                     runtime_key="default",
                 )
 

app/src/integrations/exchange/mock_data.py

@@ -1,8 +1,12 @@
+# app/src/integrations/exchange/mock_data.py
+
 from __future__ import annotations
 
 from datetime import datetime, timezone
+from decimal import Decimal
 
-from src.integrations.exchange.models import BalanceSummary, ExchangeHealth, TickerPrice
+from src.integrations.exchange.models import BalanceSummary, ExchangeHealth
+from src.market_data.acquisition.models.quote import Quote
 
 
 def mock_exchange_health() -> ExchangeHealth:
@@ -13,20 +17,23 @@ def mock_exchange_health() -> ExchangeHealth:
     )
 
 
-def mock_ticker_price(symbol: str) -> TickerPrice:
-    symbol = symbol.upper().strip()
+def mock_quote(symbol: str) -> Quote:
+    normalized_symbol = symbol.upper().strip()
     fake_prices = {
-        "BTCUSDT": 68425.10,
-        "ETHUSDT": 3521.44,
-        "BNBUSDT": 612.33,
+        "BTCUSDT": Decimal("68425.10"),
+        "ETHUSDT": Decimal("3521.44"),
+        "BNBUSDT": Decimal("612.33"),
     }
-    price = fake_prices.get(symbol, 100.00)
-    updated_at = datetime.now(timezone.utc).strftime("%Y-%m-%d %H:%M:%S UTC")
-    return TickerPrice(
-        symbol=symbol,
-        price=price,
+    price = fake_prices.get(normalized_symbol, Decimal("100.00"))
+
+    return Quote(
+        symbol=normalized_symbol,
+        last_price=price,
+        bid_price=price,
+        ask_price=price,
+        exchange_timestamp=None,
+        received_at=datetime.now(timezone.utc),
         source="mock",
-        updated_at=updated_at,
     )
 
 

app/src/integrations/exchange/models.py

@@ -3,6 +3,11 @@
 from __future__ import annotations
 
 from dataclasses import dataclass
+from typing import TYPE_CHECKING
+
+
+if TYPE_CHECKING:
+    from src.market_data.acquisition.models.instrument import Instrument
 
 
 # Состояние публичного API биржи.
@@ -25,13 +30,6 @@ class TimeSyncStatus:
     message: str
 
 
-# Текущая рыночная цена инструмента.
-@dataclass(slots=True)
-class TickerPrice:
-    symbol: str
-    price: float
-    source: str
-    updated_at: str
 
 
 # Snapshot цен для execution layer.
@@ -62,26 +60,7 @@ class BalanceSummary:
     source: str
 
 
-# Информация о торговом инструменте биржи.
-@dataclass(slots=True)
-class ExchangeSymbol:
-    symbol: str
-    name: str
-    status: str
-
-    base_asset: str
-    quote_asset: str
-
-    market_modes: list[str]
-    market_type: str
-
-    tick_size: float | None
-    step_size: float | None
-    min_qty: float | None
-    min_notional: float | None
-
-
-# Результат проверки символа.
+# Результат проверки торгового символа по каноническому справочнику Instrument.
 @dataclass(slots=True)
 class SymbolValidationResult:
     requested_symbol: str
@@ -90,7 +69,7 @@ class SymbolValidationResult:
     is_valid: bool
     message: str
 
-    symbol_info: ExchangeSymbol | None
+    symbol_info: Instrument | None
 
 
 # Состояние приватного API аккаунта.
@@ -134,6 +113,7 @@ class KlineBatch:
     candles: list[Kline]
     source: str
 
+
 # Информация о торговой комиссии для инструмента.
 @dataclass(slots=True)
 class TradingFee:

app/src/integrations/exchange/service.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 import time
 import socket
-from datetime import datetime
+from datetime import datetime, timezone
 from zoneinfo import ZoneInfo
 
 from src.core.config import load_settings
@@ -16,18 +16,16 @@ from src.integrations.exchange.market_cache import MarketPriceCache
 from src.integrations.exchange.mock_data import (
     mock_balance_summary,
     mock_exchange_health,
-    mock_ticker_price,
+    mock_quote,
 )
 from src.integrations.exchange.models import (
     BalanceSummary,
     ExchangeHealth,
-    ExchangeSymbol,
     ExecutionPriceSnapshot,
     Kline,
     KlineBatch,
     PrivateAuthHealth,
     SymbolValidationResult,
-    TickerPrice,
     TimeSyncStatus,
     TradingFee,
 )
@@ -43,12 +41,46 @@ from src.integrations.exchange.status import (
     build_mock_exchange_status,
     classify_exchange_error,
 )
-from src.integrations.exchange.symbol_utils import normalize_symbol, symbol_candidates
+from src.market_data.acquisition.adapters.dzengi.rest import (
+    DzengiInstrumentDocumentSource,
+    DzengiQuoteDocumentSource,
+)
+from src.market_data.acquisition.feeds.instrument_feed import InstrumentFeed
+from src.market_data.acquisition.feeds.quotes_feed import QuotesFeed
+from src.market_data.acquisition.handlers.instrument_handler import (
+    DzengiInstrumentDocumentHandler,
+)
+from src.market_data.acquisition.handlers.quotes_handler import (
+    DzengiQuoteDocumentHandler,
+)
+from src.market_data.acquisition.models.instrument import Instrument
+from src.market_data.acquisition.models.quote import Quote
+from src.market_data.acquisition.registry import (
+    InstrumentFeedRegistry,
+    QuoteFeedRegistry,
+)
+from src.market_data.acquisition.service import (
+    InstrumentAcquisitionService,
+    QuoteAcquisitionService,
+)
+from src.market_data.acquisition.symbols import (
+    normalize_symbol,
+    resolve_symbol_index,
+)
+from src.storage.instrument_store import (
+    InMemoryInstrumentStore,
+    InstrumentStoreProtocol,
+)
 from src.trading.journal.service import JournalService
 
 
+_INSTRUMENT_REFERENCE_SOURCE_NAME = "dzengi"
+_QUOTE_SOURCE_NAME = "dzengi"
+
+
 class ExchangeService:
-    _exchange_symbols_cache: list[ExchangeSymbol] | None = None
+    _instrument_store: InstrumentStoreProtocol = InMemoryInstrumentStore()
+
     _execution_cache_max_age_seconds = 2.0
     _default_runtime_key = "auto"
 
@@ -108,17 +140,28 @@ class ExchangeService:
             return status
 
         try:
-            snapshot = self.get_fresh_market_snapshot(validation.normalized_symbol)
+            quote = self._get_fresh_quote(
+                validation.normalized_symbol,
+            )
         except Exception:
             return status
 
-        age_seconds = safe_float(snapshot.get("age_seconds"))
+        exchange_timestamp_ms = (
+            int(quote.exchange_timestamp.timestamp() * 1000)
+            if quote.exchange_timestamp is not None
+            else None
+        )
+        age_seconds = self._exchange_timestamp_age_seconds(
+            exchange_timestamp_ms
+        )
 
         if age_seconds is not None and age_seconds > 60:
             return build_market_stale_status(
                 symbol=validation.normalized_symbol,
                 age_seconds=age_seconds,
-                updated_at=str(snapshot.get("updated_at") or ""),
+                updated_at=self._format_exchange_time(
+                    exchange_timestamp_ms
+                ),
             )
 
         return status
@@ -668,7 +711,9 @@ class ExchangeService:
             )
 
         try:
-            ticker = self._get_real_price(str(status.symbol or self.settings.default_symbol))
+            quote = self._get_fresh_quote(
+                str(status.symbol or self.settings.default_symbol)
+            )
         except ExchangeError as exc:
             return ExchangeHealth(
                 ok=False,
@@ -679,7 +724,10 @@ class ExchangeService:
         return ExchangeHealth(
             ok=True,
             mode="real_public_api",
-            message=f"Public API OK. Цена {ticker.symbol}: {ticker.price:.2f}",
+            message=(
+                f"Public API OK. Цена {quote.symbol}: "
+                f"{float(quote.last_price):.2f}"
+            ),
         )
 
     # Проверить доступность приватного API и валидность ключей аккаунта.
@@ -722,149 +770,41 @@ class ExchangeService:
             message=f"Private API OK. Балансов получено: {len(balances)}",
         )
 
-    # Обновить price cache и вернуть TickerPrice.
-    def refresh_price_cache(
+    # Получить каноническую текущую котировку из Store или REST Quotes Feed.
+    def get_quote(
         self,
         symbol: str | None = None,
         *,
         runtime_key: str | None = None,
-    ) -> TickerPrice:
-        snapshot = self.refresh_market_snapshot_cache(
-            symbol,
-            runtime_key=runtime_key,
-        )
-
-        price = safe_float(snapshot.get("last_price"))
-
-        if price is None:
-            raise ExchangeError("Field 'last_price' is missing in market snapshot.")
-
-        return TickerPrice(
-            symbol=str(snapshot["symbol"]),
-            price=price,
-            source=str(snapshot.get("source") or self._source_name()),
-            updated_at=str(snapshot["updated_at"]),
-        )
-
-    # Обновить market snapshot cache через свежий REST-запрос.
-    def refresh_market_snapshot_cache(
-        self,
-        symbol: str | None = None,
-        *,
-        runtime_key: str | None = None,
-    ) -> dict[str, object]:
-        normalized_runtime_key = self._runtime_key(runtime_key)
-        snapshot = self.get_fresh_market_snapshot(symbol)
-
-        last_price = safe_float(snapshot.get("last_price"))
-        bid_price = safe_float(snapshot.get("bid_price"))
-        ask_price = safe_float(snapshot.get("ask_price"))
-
-        if last_price is None or bid_price is None or ask_price is None:
-            raise ExchangeError("Market snapshot contains invalid price fields.")
-
-        MarketPriceCache.set_price(
-            symbol=str(snapshot["symbol"]),
-            price=last_price,
-            bid_price=bid_price,
-            ask_price=ask_price,
-            updated_at=str(snapshot["updated_at"]),
-            source=str(snapshot.get("source") or "rest_polling"),
-            runtime_key=normalized_runtime_key,
-        )
-
-        return snapshot
-
-    # Получить последнюю цену инструмента из cache или REST API.
-    def get_price(
-        self,
-        symbol: str | None = None,
-        *,
-        runtime_key: str | None = None,
-    ) -> TickerPrice:
+    ) -> Quote:
         symbol_to_use = symbol or self.settings.default_symbol
         normalized_runtime_key = self._runtime_key(runtime_key)
 
         if not self.settings.exchange_enabled:
-            return mock_ticker_price(symbol_to_use)
+            return mock_quote(symbol_to_use)
 
         validation = self.validate_symbol(symbol_to_use)
         if not validation.is_valid:
             raise ExchangeError(validation.message)
 
-        cached_price = MarketPriceCache.get_price(
+        cached_quote = MarketPriceCache.get_quote(
             validation.normalized_symbol,
             runtime_key=normalized_runtime_key,
         )
 
-        if cached_price is not None:
-            return TickerPrice(
-                symbol=cached_price.symbol,
-                price=cached_price.price,
-                source=cached_price.source,
-                updated_at=cached_price.updated_at,
-            )
+        if (
+            cached_quote is not None
+            and self._quote_age_seconds(cached_quote)
+            <= self._execution_cache_max_age_seconds
+        ):
+            return cached_quote
 
-        return self._get_real_price(validation.normalized_symbol)
-
-    # Получить market snapshot: last/bid/ask/source/age/freshness.
-    def get_market_snapshot(
-        self,
-        symbol: str | None = None,
-        *,
-        runtime_key: str | None = None,
-    ) -> dict[str, object]:
-        symbol_to_use = symbol or self.settings.default_symbol
-        normalized_runtime_key = self._runtime_key(runtime_key)
-
-        if not self.settings.exchange_enabled:
-            ticker = mock_ticker_price(symbol_to_use)
-            return {
-                "symbol": ticker.symbol,
-                "last_price": ticker.price,
-                "bid_price": ticker.price,
-                "ask_price": ticker.price,
-                "updated_at": ticker.updated_at,
-                "source": ticker.source,
-                "runtime_key": normalized_runtime_key,
-                "age_seconds": 0.0,
-                "is_fresh": True,
-            }
-
-        validation = self.validate_symbol(symbol_to_use)
-        if not validation.is_valid:
-            raise ExchangeError(validation.message)
-
-        cached_price = MarketPriceCache.get_price(
-            validation.normalized_symbol,
+        quote = self._get_fresh_quote(validation.normalized_symbol)
+        MarketPriceCache.set_quote(
+            quote,
             runtime_key=normalized_runtime_key,
         )
-
-        if cached_price is not None:
-            age = cached_price.age_seconds()
-
-            if age <= self._execution_cache_max_age_seconds:
-                return {
-                    "symbol": cached_price.symbol,
-                    "last_price": cached_price.price,
-                    "bid_price": cached_price.bid_price or cached_price.price,
-                    "ask_price": cached_price.ask_price or cached_price.price,
-                    "updated_at": cached_price.updated_at,
-                    "source": cached_price.source,
-                    "runtime_key": cached_price.runtime_key,
-                    "age_seconds": round(age, 3),
-                    "is_fresh": True,
-                }
-
-        snapshot = self.refresh_market_snapshot_cache(
-            validation.normalized_symbol,
-            runtime_key=normalized_runtime_key,
-        )
-        snapshot["runtime_key"] = normalized_runtime_key
-        snapshot["age_seconds"] = 0.0
-        snapshot["is_fresh"] = True
-
-        return snapshot
+        return quote
 
     # Получить snapshot, пригодный для execution layer.
     def get_execution_snapshot(
@@ -877,15 +817,10 @@ class ExchangeService:
         normalized_runtime_key = self._runtime_key(runtime_key)
 
         if not self.settings.exchange_enabled:
-            ticker = mock_ticker_price(symbol_to_use)
-            return ExecutionPriceSnapshot(
-                symbol=ticker.symbol,
-                last_price=ticker.price,
-                bid_price=ticker.price,
-                ask_price=ticker.price,
-                updated_at=ticker.updated_at,
-                source=ticker.source,
-                is_fresh=True,
+            quote = mock_quote(symbol_to_use)
+            return self._execution_snapshot_from_quote(
+                quote,
+                source=quote.source,
                 age_seconds=0.0,
             )
 
@@ -893,125 +828,96 @@ class ExchangeService:
         if not validation.is_valid:
             raise ExchangeError(validation.message)
 
-        cached_price = MarketPriceCache.get_price(
+        quote = MarketPriceCache.get_quote(
             validation.normalized_symbol,
             runtime_key=normalized_runtime_key,
         )
 
-        if cached_price is not None:
-            age = cached_price.age_seconds()
+        if quote is not None:
+            age_seconds = self._quote_age_seconds(quote)
 
-            if (
-                age <= self._execution_cache_max_age_seconds
-                and cached_price.has_bid_ask()
-            ):
-                bid_price = safe_float(cached_price.bid_price)
-                ask_price = safe_float(cached_price.ask_price)
-                last_price = safe_float(cached_price.price)
+            if age_seconds <= self._execution_cache_max_age_seconds:
+                return self._execution_snapshot_from_quote(
+                    quote,
+                    source=f"{quote.source}:fresh_cache",
+                    age_seconds=round(age_seconds, 3),
+                )
 
-                if (
-                    last_price is not None
-                    and bid_price is not None
-                    and ask_price is not None
-                ):
-                    return ExecutionPriceSnapshot(
-                        symbol=cached_price.symbol,
-                        last_price=last_price,
-                        bid_price=bid_price,
-                        ask_price=ask_price,
-                        updated_at=cached_price.updated_at,
-                        source=f"{cached_price.source}:fresh_cache",
-                        is_fresh=True,
-                        age_seconds=round(age, 3),
-                    )
+        quote = self._get_fresh_quote(
+            validation.normalized_symbol
+        )
+        MarketPriceCache.set_quote(
+            quote,
+            runtime_key=normalized_runtime_key,
+        )
 
-        snapshot = self.get_fresh_market_snapshot(validation.normalized_symbol)
+        return self._execution_snapshot_from_quote(
+            quote,
+            source="rest_fallback",
+            age_seconds=round(
+                self._quote_age_seconds(quote),
+                3,
+            ),
+        )
 
-        last_price = safe_float(snapshot.get("last_price"))
-        bid_price = safe_float(snapshot.get("bid_price"))
-        ask_price = safe_float(snapshot.get("ask_price"))
+    def _execution_snapshot_from_quote(
+        self,
+        quote: Quote,
+        *,
+        source: str,
+        age_seconds: float,
+    ) -> ExecutionPriceSnapshot:
+        timestamp = (
+            quote.exchange_timestamp
+            if quote.exchange_timestamp is not None
+            else quote.received_at
+        )
 
-        if last_price is None or bid_price is None or ask_price is None:
-            raise ExchangeError("Market snapshot contains invalid execution prices.")
+        if timestamp.tzinfo is None:
+            timestamp = timestamp.replace(tzinfo=timezone.utc)
 
-        age_seconds = safe_float(snapshot.get("age_seconds"))
+        updated_at = timestamp.astimezone(
+            ZoneInfo(self.settings.tz)
+        ).strftime("%d.%m.%Y %H:%M:%S")
 
         return ExecutionPriceSnapshot(
-            symbol=str(snapshot["symbol"]),
-            last_price=last_price,
-            bid_price=bid_price,
-            ask_price=ask_price,
-            updated_at=str(snapshot["updated_at"]),
-            source="rest_fallback",
-            is_fresh=bool(snapshot.get("is_fresh")),
+            symbol=quote.symbol,
+            last_price=float(quote.last_price),
+            bid_price=float(quote.bid_price),
+            ask_price=float(quote.ask_price),
+            updated_at=updated_at,
+            source=source,
+            is_fresh=(
+                age_seconds
+                <= self._execution_cache_max_age_seconds
+            ),
             age_seconds=age_seconds,
         )
 
-    # Получить свежий snapshot напрямую из REST API.
-    def get_fresh_market_snapshot(self, symbol: str | None = None) -> dict[str, object]:
-        symbol_to_use = symbol or self.settings.default_symbol
+    def _quote_age_seconds(self, quote: Quote) -> float:
+        received_at = quote.received_at
+        if received_at.tzinfo is None:
+            received_at = received_at.replace(tzinfo=timezone.utc)
 
-        if not self.settings.exchange_enabled:
-            ticker = mock_ticker_price(symbol_to_use)
-            return {
-                "symbol": ticker.symbol,
-                "last_price": ticker.price,
-                "bid_price": ticker.price,
-                "ask_price": ticker.price,
-                "updated_at": ticker.updated_at,
-                "source": "mock",
-                "age_seconds": 0.0,
-                "is_fresh": True,
-            }
-
-        validation = self.validate_symbol(symbol_to_use)
-        if not validation.is_valid:
-            raise ExchangeError(validation.message)
-
-        client = ExchangeRestClient()
+        return max(
+            0.0,
+            (
+                datetime.now(timezone.utc)
+                - received_at.astimezone(timezone.utc)
+            ).total_seconds(),
+        )
 
+    def _get_fresh_quote(self, normalized_symbol: str) -> Quote:
         try:
-            payload = client.get_json(
-                "/api/v1/ticker/24hr",
-                params={"symbol": validation.normalized_symbol},
-            )
+            return self._load_quote_via_acquisition(normalized_symbol)
         except Exception as exc:
             self._log_exchange_error(
                 endpoint="ticker/24hr",
                 exc=exc,
-                symbol=validation.normalized_symbol,
+                symbol=normalized_symbol,
             )
             raise ExchangeError(str(exc)) from exc
 
-        last_price = safe_float(payload.get("lastPrice"))
-
-        if last_price is None:
-            exc = ExchangeError("Field 'lastPrice' is missing in ticker response.")
-            self._log_exchange_error(
-                endpoint="ticker/24hr",
-                exc=exc,
-                symbol=validation.normalized_symbol,
-            )
-            raise exc
-
-        bid_price = safe_float(payload.get("bidPrice")) or last_price
-        ask_price = safe_float(payload.get("askPrice")) or last_price
-        close_time = payload.get("closeTime") or payload.get("eventTime")
-
-        age_seconds = self._exchange_timestamp_age_seconds(close_time)
-        is_fresh = age_seconds is not None and age_seconds <= 60
-
-        return {
-            "symbol": validation.normalized_symbol,
-            "last_price": last_price,
-            "bid_price": bid_price,
-            "ask_price": ask_price,
-            "updated_at": self._format_exchange_time(close_time),
-            "source": "fresh_rest",
-            "age_seconds": age_seconds,
-            "is_fresh": is_fresh,
-        }
-
     # Получить live-балансы аккаунта.
     def get_balance_summary(self) -> list[BalanceSummary]:
         if not self.settings.exchange_enabled:
@@ -1056,20 +962,22 @@ class ExchangeService:
 
         return balances
 
-    # Получить и распарсить список инструментов биржи.
-    def get_exchange_symbols(self) -> list[ExchangeSymbol]:
+    # Получить канонический справочник инструментов через Instrument Store.
+    def get_instruments(self) -> tuple[Instrument, ...]:
         if not self.settings.exchange_enabled:
-            return []
+            return ()
 
-        cached_symbols = type(self)._exchange_symbols_cache
+        instrument_store = type(self)._instrument_store
 
-        if cached_symbols is not None:
-            return cached_symbols
+        instruments = instrument_store.get(
+            _INSTRUMENT_REFERENCE_SOURCE_NAME
+        )
 
-        client = ExchangeRestClient()
+        if instruments is not None:
+            return instruments
 
         try:
-            payload = client.get_json("/api/v1/exchangeInfo")
+            instruments = self._load_instruments_via_acquisition()
         except Exception as exc:
             self._log_exchange_error(
                 endpoint="exchangeInfo",
@@ -1077,98 +985,65 @@ class ExchangeService:
             )
             raise ExchangeError(str(exc)) from exc
 
-        symbols_raw = self._extract_exchange_symbols_raw(payload)
-        items: list[ExchangeSymbol] = []
-
-        for item in symbols_raw:
-            if not isinstance(item, dict):
-                continue
-
-            symbol = self._parse_exchange_symbol(item)
-
-            if symbol.symbol:
-                items.append(symbol)
-
-        type(self)._exchange_symbols_cache = items
-
-        return items
-
-    # Извлечь сырой список symbols из exchangeInfo.
-    def _extract_exchange_symbols_raw(
-        self,
-        payload: dict[str, object],
-    ) -> list[object]:
-        symbols = payload.get("symbols")
-
-        if isinstance(symbols, list):
-            return symbols
-
-        inner = payload.get("payload")
-
-        if isinstance(inner, dict):
-            nested_symbols = inner.get("symbols")
-
-            if isinstance(nested_symbols, list):
-                return nested_symbols
-
-        exc = ExchangeError("Field 'symbols' is missing in exchangeInfo response.")
-        self._log_exchange_error(
-            endpoint="exchangeInfo",
-            exc=exc,
+        instrument_store.set(
+            _INSTRUMENT_REFERENCE_SOURCE_NAME,
+            instruments,
         )
-        raise exc
 
-    # Преобразовать один сырой symbol item в ExchangeSymbol.
-    def _parse_exchange_symbol(
+        return instruments
+
+    # Собрать Quotes acquisition pipeline и вернуть каноническую модель Quote.
+    def _load_quote_via_acquisition(
         self,
-        item: dict[object, object],
-    ) -> ExchangeSymbol:
-        filters = item.get("filters")
+        symbol: str,
+    ) -> Quote:
+        source = DzengiQuoteDocumentSource()
+        handler = DzengiQuoteDocumentHandler()
 
-        tick_size = safe_float(item.get("tickSize"))
-        if tick_size is None:
-            tick_size = self._extract_filter_value(
-                filters,
-                filter_names=["PRICE_FILTER"],
-                keys=["tickSize"],
-            )
+        feed = QuotesFeed(
+            source=source,
+            handler=handler,
+        )
 
-        step_size = safe_float(item.get("stepSize"))
-        if step_size is None:
-            step_size = self._extract_filter_value(
-                filters,
-                filter_names=["LOT_SIZE", "MARKET_LOT_SIZE"],
-                keys=["stepSize"],
-            )
+        registry = QuoteFeedRegistry()
+        registry.register(
+            _QUOTE_SOURCE_NAME,
+            feed,
+        )
 
-        min_qty = safe_float(item.get("minQty"))
-        if min_qty is None:
-            min_qty = self._extract_filter_value(
-                filters,
-                filter_names=["LOT_SIZE", "MARKET_LOT_SIZE"],
-                keys=["minQty"],
-            )
+        acquisition_service = QuoteAcquisitionService(
+            registry=registry,
+        )
 
-        min_notional = safe_float(item.get("minNotional"))
-        if min_notional is None:
-            min_notional = self._extract_filter_value(
-                filters,
-                filter_names=["MIN_NOTIONAL", "NOTIONAL"],
-                keys=["minNotional", "notional"],
-            )
+        return acquisition_service.load_quote(
+            _QUOTE_SOURCE_NAME,
+            symbol,
+        )
 
-        return ExchangeSymbol(
-            symbol=self._safe_str(item.get("symbol")),
-            name=self._safe_str(item.get("name")),
-            status=self._parse_exchange_symbol_status(item),
-            base_asset=self._safe_str(item.get("baseAsset")),
-            quote_asset=self._safe_str(item.get("quoteAsset")),
-            market_modes=self._parse_market_modes(item.get("marketModes")),
-            market_type=self._safe_str(item.get("marketType"), "unknown"),
-            tick_size=tick_size,
-            step_size=step_size,
-            min_qty=min_qty,
-            min_notional=min_notional,
+    # Собрать acquisition pipeline и вернуть канонические модели Instrument.
+    def _load_instruments_via_acquisition(
+        self,
+    ) -> tuple[Instrument, ...]:
+        source = DzengiInstrumentDocumentSource()
+        handler = DzengiInstrumentDocumentHandler()
+
+        feed = InstrumentFeed(
+            source=source,
+            handler=handler,
+        )
+
+        registry = InstrumentFeedRegistry()
+        registry.register(
+            _INSTRUMENT_REFERENCE_SOURCE_NAME,
+            feed,
+        )
+
+        acquisition_service = InstrumentAcquisitionService(
+            registry=registry,
+        )
+
+        return acquisition_service.load_instruments(
+            _INSTRUMENT_REFERENCE_SOURCE_NAME
         )
 
     # Безопасно привести значение к строке.
@@ -1178,91 +1053,6 @@ class ExchangeService:
 
         return str(value).strip()
 
-    def _parse_exchange_symbol_status(self, item: dict[object, object]) -> str:
-        status = self._safe_str(item.get("status"), "unknown")
-
-        false_flags = {
-            "isTradingAllowed",
-            "tradingAllowed",
-            "availableForTrading",
-            "isTradable",
-            "tradable",
-            "isMarketOpen",
-            "marketOpen",
-            "isOpen",
-            "enabled",
-        }
-
-        for key in false_flags:
-            if key not in item:
-                continue
-
-            value = item.get(key)
-
-            if isinstance(value, bool) and not value:
-                return "NOT_TRADABLE"
-
-            if str(value).strip().lower() in {"false", "0", "no", "disabled"}:
-                return "NOT_TRADABLE"
-
-        for key in ("tradingMode", "tradeMode", "mode", "state"):
-            value = str(item.get(key) or "").strip().upper()
-
-            if value in {
-                "NOT_TRADABLE",
-                "TRADING_DISABLED",
-                "MARKET_DISABLED",
-                "UNAVAILABLE_FOR_TRADING",
-                "CLOSE_ONLY",
-                "REDUCE_ONLY",
-                "VIEW_ONLY",
-            }:
-                return value
-
-        return status
-    
-    # Привести marketModes к list[str].
-    def _parse_market_modes(self, value: object) -> list[str]:
-        if isinstance(value, list):
-            return [
-                str(item).strip()
-                for item in value
-                if str(item).strip()
-            ]
-
-        if isinstance(value, str) and value.strip():
-            return [value.strip()]
-
-        return []
-
-    # Извлечь числовое значение из filters exchangeInfo.
-    def _extract_filter_value(
-        self,
-        filters: object,
-        *,
-        filter_names: list[str],
-        keys: list[str],
-    ) -> float | None:
-        if not isinstance(filters, list):
-            return None
-
-        normalized_filter_names = {name.upper() for name in filter_names}
-
-        for entry in filters:
-            if not isinstance(entry, dict):
-                continue
-
-            filter_type = str(entry.get("filterType", "")).strip().upper()
-            if filter_type not in normalized_filter_names:
-                continue
-
-            for key in keys:
-                value = safe_float(entry.get(key))
-                if value is not None:
-                    return value
-
-        return None
-
     # Проверить, существует ли инструмент на бирже.
     def validate_symbol(self, raw_symbol: str) -> SymbolValidationResult:
         requested = normalize_symbol(raw_symbol)
@@ -1285,43 +1075,40 @@ class ExchangeService:
                 symbol_info=None,
             )
 
-        symbols = self.get_exchange_symbols()
-        candidates = symbol_candidates(requested)
+        instruments = self.get_instruments()
 
-        for candidate in candidates:
-            for symbol_info in symbols:
-                if normalize_symbol(symbol_info.symbol) == candidate:
-                    return SymbolValidationResult(
-                        requested_symbol=requested,
-                        normalized_symbol=normalize_symbol(symbol_info.symbol),
-                        is_valid=True,
-                        message="Символ найден в exchangeInfo.",
-                        symbol_info=symbol_info,
-                    )
+        matched_index = resolve_symbol_index(
+            requested,
+            [
+                instrument.symbol
+                for instrument in instruments
+            ],
+        )
+
+        if matched_index is not None:
+            instrument = instruments[matched_index]
+
+            return SymbolValidationResult(
+                requested_symbol=requested,
+                normalized_symbol=normalize_symbol(
+                    instrument.symbol
+                ),
+                is_valid=True,
+                message="Символ найден в exchangeInfo.",
+                symbol_info=instrument,
+            )
 
         return SymbolValidationResult(
             requested_symbol=requested,
             normalized_symbol=requested,
             is_valid=False,
-            message=f"Символ '{requested}' не найден в exchangeInfo.",
+            message=(
+                f"Символ '{requested}' "
+                "не найден в exchangeInfo."
+            ),
             symbol_info=None,
         )
 
-    # Получить реальную цену инструмента через свежий REST snapshot.
-    def _get_real_price(self, symbol: str) -> TickerPrice:
-        snapshot = self.get_fresh_market_snapshot(symbol)
-        price = safe_float(snapshot.get("last_price"))
-
-        if price is None:
-            raise ExchangeError("Field 'last_price' is missing in market snapshot.")
-
-        return TickerPrice(
-            symbol=str(snapshot["symbol"]),
-            price=price,
-            source=self._source_name(),
-            updated_at=str(snapshot["updated_at"]),
-        )
-    
     def get_exchange_server_time_ms(self) -> int:
         payload = ExchangeRestClient().get_json("/api/v1/time")
 

app/src/integrations/exchange/status.py

@@ -9,6 +9,10 @@ from src.integrations.exchange.exceptions import (
     ExchangeConnectionError,
     ExchangeResponseError,
 )
+from src.market_data.acquisition.models.status import (
+    InstrumentTradingState,
+    classify_instrument_status,
+)
 
 
 class ExchangeStatusCode(StrEnum):
@@ -35,7 +39,7 @@ class ExchangeRuntimeStatus:
     raw_status: str | None = None
     raw_error: str | None = None
 
-    # вернуть статус в dict для старого UI-кода на время миграции
+    # Вернуть статус в dict для старого UI-кода на время миграции.
     def as_dict(self) -> dict[str, object]:
         return {
             "code": self.code.value,
@@ -79,7 +83,7 @@ def build_market_stale_status(
     )
 
 
-# собрать статус mock-режима
+# Собрать статус mock-режима.
 def build_mock_exchange_status(*, symbol: str) -> ExchangeRuntimeStatus:
     return ExchangeRuntimeStatus(
         code=ExchangeStatusCode.OPEN,
@@ -95,48 +99,21 @@ def build_mock_exchange_status(*, symbol: str) -> ExchangeRuntimeStatus:
     )
 
 
-# собрать статус ошибки авторизации аккаунта
+# Собрать статус ошибки авторизации аккаунта.
 def build_account_auth_status(exc: Exception) -> ExchangeRuntimeStatus:
     return build_exchange_error_status(exc)
 
 
-OPEN_STATUSES = {
-    "TRADING",
-    "OPEN",
-    "ACTIVE",
-    "ENABLED",
-    "ONLINE",
-}
-
-BREAK_STATUSES = {
-    "BREAK",
-    "CLOSED",
-    "HALT",
-    "HALTED",
-    "PAUSED",
-    "SUSPENDED",
-    "DISABLED",
-    "SETTLING",
-    "POST_ONLY",
-    "NOT_TRADABLE",
-    "TRADING_DISABLED",
-    "MARKET_DISABLED",
-    "UNAVAILABLE_FOR_TRADING",
-    "CLOSE_ONLY",
-    "REDUCE_ONLY",
-    "VIEW_ONLY",
-}
-
-
-# определить единый runtime-статус по статусу инструмента биржи
+# Собрать legacy runtime-статус по канонической классификации инструмента.
 def build_market_status_from_symbol_status(
     *,
     raw_status: str | None,
     symbol: str,
 ) -> ExchangeRuntimeStatus:
-    normalized_status = str(raw_status or "").strip().upper()
+    classification = classify_instrument_status(raw_status)
+    normalized_status = classification.normalized_status
 
-    if normalized_status in OPEN_STATUSES:
+    if classification.state == InstrumentTradingState.OPEN:
         return ExchangeRuntimeStatus(
             code=ExchangeStatusCode.OPEN,
             is_open=True,
@@ -150,15 +127,7 @@ def build_market_status_from_symbol_status(
             symbol=symbol,
         )
 
-    if normalized_status in {
-        "NOT_TRADABLE",
-        "TRADING_DISABLED",
-        "MARKET_DISABLED",
-        "UNAVAILABLE_FOR_TRADING",
-        "CLOSE_ONLY",
-        "REDUCE_ONLY",
-        "VIEW_ONLY",
-    }:
+    if classification.state == InstrumentTradingState.NOT_TRADABLE:
         return ExchangeRuntimeStatus(
             code=ExchangeStatusCode.BREAK,
             is_open=False,
@@ -171,8 +140,8 @@ def build_market_status_from_symbol_status(
             raw_status=normalized_status,
             symbol=symbol,
         )
-    
-    if normalized_status in BREAK_STATUSES:
+
+    if classification.state == InstrumentTradingState.BREAK:
         return ExchangeRuntimeStatus(
             code=ExchangeStatusCode.BREAK,
             is_open=False,
@@ -198,12 +167,12 @@ def build_market_status_from_symbol_status(
         ),
         ui_line="⚠️ Статус торгов неизвестен",
         reason="market_status_unknown",
-        raw_status=normalized_status or None,
+        raw_status=normalized_status,
         symbol=symbol,
     )
 
 
-# собрать единый статус для неверного торгового инструмента
+# Собрать единый статус для неверного торгового инструмента.
 def build_invalid_symbol_status(
     *,
     symbol: str,
@@ -223,7 +192,7 @@ def build_invalid_symbol_status(
     )
 
 
-# собрать единый статус по ошибке exchange/API
+# Собрать единый статус по ошибке exchange/API.
 def build_exchange_error_status(exc: Exception) -> ExchangeRuntimeStatus:
     error_type = classify_exchange_error(exc)
     raw_error = str(exc)
@@ -270,7 +239,7 @@ def build_exchange_error_status(exc: Exception) -> ExchangeRuntimeStatus:
     )
 
 
-# классифицировать ошибку биржи для единого UI и логов
+# Классифицировать ошибку биржи для единого UI и логов.
 def classify_exchange_error(exc: Exception) -> str:
     text = str(exc).lower()
 
@@ -326,7 +295,7 @@ def classify_exchange_error(exc: Exception) -> str:
     return "generic"
 
 
-# проверить, относится ли reason к unified exchange status layer
+# Проверить, относится ли reason к unified exchange status layer.
 def is_exchange_status_reason(reason: str | None) -> bool:
     if not reason:
         return False

app/src/integrations/exchange/symbol_utils.py

@@ -2,24 +2,13 @@
 
 from __future__ import annotations
 
-
-def normalize_symbol(raw_symbol: str) -> str:
-    return (raw_symbol or "").strip().upper()
+from src.market_data.acquisition.symbols import (
+    normalize_symbol,
+    symbol_candidates,
+)
 
 
-def symbol_candidates(raw_symbol: str) -> list[str]:
-    value = normalize_symbol(raw_symbol)
-    if not value:
-        return []
-
-    candidates = [value]
-
-    compact = value.replace("%2F", "/")
-    if compact not in candidates:
-        candidates.append(compact)
-
-    no_spaces = compact.replace(" ", "")
-    if no_spaces not in candidates:
-        candidates.append(no_spaces)
-
-    return candidates
+__all__ = [
+    "normalize_symbol",
+    "symbol_candidates",
+]

app/src/market_data/acquisition/adapters/dzengi/mapper.py

@@ -0,0 +1,316 @@
+# app/src/market_data/acquisition/adapters/dzengi/mapper.py
+
+from __future__ import annotations
+
+from datetime import datetime, timezone
+from decimal import Decimal, InvalidOperation
+
+from src.market_data.acquisition.adapters.dzengi.models import (
+    DzengiExchangeInfoResponse,
+    DzengiExchangeInfoSymbol,
+    DzengiInstrumentFilter,
+    DzengiLotSizeFilter,
+    DzengiMinNotionalFilter,
+    DzengiRawNumeric,
+    DzengiTicker24hrResponse,
+    DzengiWebSocketQuoteResponse,
+)
+from src.market_data.acquisition.exceptions import (
+    InstrumentReferenceMappingError,
+    QuoteMappingError,
+)
+from src.market_data.acquisition.models.instrument import Instrument
+from src.market_data.acquisition.models.quote import Quote
+
+
+_DZENGI_SOURCE_NAME = "dzengi"
+
+
+def map_dzengi_symbol_to_instrument(
+    symbol: DzengiExchangeInfoSymbol,
+) -> Instrument:
+    """
+    Преобразовать проверенную raw-модель инструмента Dzengi
+    во внутреннюю source-independent модель Instrument.
+
+    Функция предполагает, что до mapper уже были выполнены:
+    schema validation, parsing и value validation.
+    """
+
+    lot_size = _find_single_filter(
+        symbol.filters,
+        DzengiLotSizeFilter,
+        filter_name="LOT_SIZE",
+        symbol=symbol.symbol,
+    )
+    min_notional = _find_single_filter(
+        symbol.filters,
+        DzengiMinNotionalFilter,
+        filter_name="MIN_NOTIONAL",
+        symbol=symbol.symbol,
+    )
+
+    return Instrument(
+        symbol=symbol.symbol,
+        name=symbol.name,
+        status=symbol.status,
+        base_asset=symbol.base_asset,
+        quote_asset=symbol.quote_asset,
+        asset_type=_optional_text(symbol.asset_type),
+        market_type=symbol.market_type,
+        market_modes=symbol.market_modes,
+        order_types=symbol.order_types,
+        base_asset_precision=symbol.base_asset_precision,
+        quote_asset_precision=symbol.quote_precision,
+        tick_size=_optional_decimal(
+            symbol.tick_size,
+            field_name="tickSize",
+            symbol=symbol.symbol,
+        ),
+        tick_value=_optional_decimal(
+            symbol.tick_value,
+            field_name="tickValue",
+            symbol=symbol.symbol,
+        ),
+        step_size=_optional_decimal(
+            lot_size.step_size if lot_size is not None else None,
+            field_name="stepSize",
+            symbol=symbol.symbol,
+        ),
+        min_qty=_optional_decimal(
+            lot_size.min_qty if lot_size is not None else None,
+            field_name="minQty",
+            symbol=symbol.symbol,
+        ),
+        max_qty=_optional_decimal(
+            lot_size.max_qty if lot_size is not None else None,
+            field_name="maxQty",
+            symbol=symbol.symbol,
+        ),
+        min_notional=_optional_decimal(
+            min_notional.min_notional
+            if min_notional is not None
+            else None,
+            field_name="minNotional",
+            symbol=symbol.symbol,
+        ),
+        country=_optional_text(symbol.country),
+        sector=_optional_text(symbol.sector),
+        industry=_optional_text(symbol.industry),
+        trading_hours=_optional_text(symbol.trading_hours),
+    )
+
+
+def map_dzengi_exchange_info_to_instruments(
+    response: DzengiExchangeInfoResponse,
+) -> tuple[Instrument, ...]:
+    """
+    Преобразовать все инструменты exchangeInfo
+    во внутренние модели Instrument.
+    """
+
+    return tuple(
+        map_dzengi_symbol_to_instrument(symbol)
+        for symbol in response.payload.symbols
+    )
+
+
+def map_dzengi_ticker_to_quote(
+    response: DzengiTicker24hrResponse,
+    *,
+    received_at: datetime,
+) -> Quote:
+    """
+    Преобразовать проверенную raw-модель Dzengi ticker/24hr
+    во внутреннюю source-independent модель Quote.
+
+    Функция предполагает, что до mapper уже были выполнены:
+    schema validation, parsing и value validation.
+    """
+
+    normalized_received_at = _require_aware_datetime(
+        received_at,
+        field_name="received_at",
+    )
+
+    return Quote(
+        symbol=response.symbol.strip(),
+        last_price=_required_quote_decimal(
+            response.last_price,
+            field_name="lastPrice",
+        ),
+        bid_price=_required_quote_decimal(
+            response.bid_price,
+            field_name="bidPrice",
+        ),
+        ask_price=_required_quote_decimal(
+            response.ask_price,
+            field_name="askPrice",
+        ),
+        exchange_timestamp=_timestamp_ms_to_utc_datetime(
+            response.close_time,
+        ),
+        received_at=normalized_received_at,
+        source=_DZENGI_SOURCE_NAME,
+    )
+
+
+def _timestamp_ms_to_utc_datetime(value: int) -> datetime:
+    try:
+        return datetime.fromtimestamp(
+            value / 1000,
+            tz=timezone.utc,
+        )
+    except (OverflowError, OSError, ValueError) as exc:
+        raise QuoteMappingError(
+            "Поле closeTime невозможно преобразовать "
+            "в UTC datetime."
+        ) from exc
+
+
+def _required_quote_decimal(
+    value: DzengiRawNumeric,
+    *,
+    field_name: str,
+) -> Decimal:
+    try:
+        result = Decimal(str(value))
+    except (InvalidOperation, ValueError) as exc:
+        raise QuoteMappingError(
+            f"Поле {field_name} котировки невозможно "
+            "преобразовать в Decimal."
+        ) from exc
+
+    if not result.is_finite():
+        raise QuoteMappingError(
+            f"Поле {field_name} котировки должно быть "
+            "конечным числом."
+        )
+
+    return result
+
+
+def _require_aware_datetime(
+    value: datetime,
+    *,
+    field_name: str,
+) -> datetime:
+    if value.tzinfo is None or value.utcoffset() is None:
+        raise QuoteMappingError(
+            f"Поле {field_name} должно содержать timezone-aware datetime."
+        )
+
+    return value
+
+
+def _find_single_filter[
+    FilterT: DzengiInstrumentFilter
+](
+    filters: tuple[DzengiInstrumentFilter, ...],
+    filter_type: type[FilterT],
+    *,
+    filter_name: str,
+    symbol: str,
+) -> FilterT | None:
+    matches = tuple(
+        instrument_filter
+        for instrument_filter in filters
+        if isinstance(instrument_filter, filter_type)
+    )
+
+    if len(matches) > 1:
+        raise InstrumentReferenceMappingError(
+            f"Инструмент '{symbol}' содержит несколько "
+            f"фильтров {filter_name}."
+        )
+
+    if not matches:
+        return None
+
+    return matches[0]
+
+
+def _optional_decimal(
+    value: DzengiRawNumeric | None,
+    *,
+    field_name: str,
+    symbol: str,
+) -> Decimal | None:
+    if value is None:
+        return None
+
+    try:
+        result = Decimal(str(value))
+    except (InvalidOperation, ValueError) as exc:
+        raise InstrumentReferenceMappingError(
+            f"Поле {field_name} инструмента '{symbol}' "
+            f"невозможно преобразовать в Decimal."
+        ) from exc
+
+    if not result.is_finite():
+        raise InstrumentReferenceMappingError(
+            f"Поле {field_name} инструмента '{symbol}' "
+            f"должно быть конечным числом."
+        )
+
+    return result
+
+
+def _optional_text(value: str | None) -> str | None:
+    if value is None:
+        return None
+
+    normalized = value.strip()
+
+    if not normalized:
+        return None
+
+    return normalized
+
+
+def map_dzengi_websocket_quote_to_quote(
+    response: DzengiWebSocketQuoteResponse,
+    *,
+    received_at: datetime,
+) -> Quote:
+    """
+    Преобразовать проверенную WebSocket-модель Dzengi в канонический Quote.
+
+    Depth-сообщение не содержит цену последней сделки, поэтому временно
+    используется midpoint best bid / best ask — так же, как в legacy runtime.
+    """
+
+    normalized_received_at = _require_aware_datetime(
+        received_at,
+        field_name="received_at",
+    )
+    bid_price = _required_quote_decimal(
+        response.bid_price,
+        field_name="bidPrice",
+    )
+    ask_price = _required_quote_decimal(
+        response.ask_price,
+        field_name="askPrice",
+    )
+
+    exchange_timestamp = None
+    if response.timestamp is not None:
+        try:
+            exchange_timestamp = datetime.fromtimestamp(
+                response.timestamp / 1000,
+                tz=timezone.utc,
+            )
+        except (OverflowError, OSError, ValueError) as exc:
+            raise QuoteMappingError(
+                "Поле timestamp невозможно преобразовать в UTC datetime."
+            ) from exc
+
+    return Quote(
+        symbol=response.symbol.strip(),
+        last_price=(bid_price + ask_price) / Decimal("2"),
+        bid_price=bid_price,
+        ask_price=ask_price,
+        exchange_timestamp=exchange_timestamp,
+        received_at=normalized_received_at,
+        source=_DZENGI_SOURCE_NAME,
+    )

app/src/market_data/acquisition/adapters/dzengi/models.py

@@ -0,0 +1,133 @@
+# app/src/market_data/acquisition/adapters/dzengi/models.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import TypeAlias
+
+
+# Число в исходном JSON-ответе Dzengi без предметного преобразования.
+DzengiJsonNumber: TypeAlias = int | float
+
+# Числовое значение, которое Dzengi может передать числом или строкой.
+DzengiRawNumeric: TypeAlias = str | int | float
+
+# Скалярное значение неизвестного поля транспортного ответа.
+DzengiJsonScalar: TypeAlias = str | int | float | bool | None
+
+
+# Лимит запросов из exchangeInfo.
+@dataclass(frozen=True, slots=True)
+class DzengiRateLimit:
+    interval: str
+    interval_num: int
+    limit: int
+    rate_limit_type: str
+
+
+# Базовый контракт фильтра инструмента Dzengi.
+@dataclass(frozen=True, slots=True)
+class DzengiInstrumentFilter:
+    filter_type: str
+
+
+# Ограничения размера заявки.
+@dataclass(frozen=True, slots=True)
+class DzengiLotSizeFilter(DzengiInstrumentFilter):
+    min_qty: DzengiRawNumeric | None
+    max_qty: DzengiRawNumeric | None
+    step_size: DzengiRawNumeric | None
+
+
+# Ограничение минимальной стоимости заявки.
+@dataclass(frozen=True, slots=True)
+class DzengiMinNotionalFilter(DzengiInstrumentFilter):
+    min_notional: DzengiRawNumeric | None
+
+
+# Неизвестный тип фильтра, который ещё не поддерживается адаптером.
+@dataclass(frozen=True, slots=True)
+class DzengiUnknownFilter(DzengiInstrumentFilter):
+    fields: tuple[tuple[str, DzengiJsonScalar], ...]
+
+
+# Один инструмент из ответа Dzengi exchangeInfo.
+@dataclass(frozen=True, slots=True)
+class DzengiExchangeInfoSymbol:
+    symbol: str
+    name: str
+    status: str
+
+    asset_type: str | None
+
+    base_asset: str
+    base_asset_precision: int | None
+
+    quote_asset: str
+    quote_asset_id: str | None
+    quote_precision: int | None
+
+    order_types: tuple[str, ...]
+    filters: tuple[DzengiInstrumentFilter, ...]
+
+    market_modes: tuple[str, ...]
+    market_type: str
+
+    country: str | None
+    sector: str | None
+    industry: str | None
+    trading_hours: str | None
+
+    tick_size: DzengiJsonNumber | None
+    tick_value: DzengiJsonNumber | None
+
+    trading_fee: DzengiJsonNumber | None
+    exchange_fee: DzengiJsonNumber | None
+
+    long_rate: DzengiJsonNumber | None
+    short_rate: DzengiJsonNumber | None
+    swap_charge_interval: int | None
+
+    min_sl_gap: DzengiJsonNumber | None
+    max_sl_gap: DzengiJsonNumber | None
+    min_tp_gap: DzengiJsonNumber | None
+    max_tp_gap: DzengiJsonNumber | None
+
+
+# Содержимое exchangeInfo независимо от внешней оболочки API.
+@dataclass(frozen=True, slots=True)
+class DzengiExchangeInfoPayload:
+    timezone: str | None
+    server_time: int | None
+    rate_limits: tuple[DzengiRateLimit, ...]
+    exchange_filters: tuple[DzengiUnknownFilter, ...]
+    symbols: tuple[DzengiExchangeInfoSymbol, ...]
+
+
+# Нормализованное транспортное представление ответа exchangeInfo.
+@dataclass(frozen=True, slots=True)
+class DzengiExchangeInfoResponse:
+    payload: DzengiExchangeInfoPayload
+
+    # Поля присутствуют в wrapped-формате ответа и отсутствуют
+    # в фактическом unwrapped-ответе публичного REST endpoint.
+    status: str | None = None
+    correlation_id: str | None = None
+
+# Транспортное представление ответа Dzengi GET /api/v1/ticker/24hr.
+@dataclass(frozen=True, slots=True)
+class DzengiTicker24hrResponse:
+    symbol: str
+    last_price: DzengiRawNumeric
+    bid_price: DzengiRawNumeric
+    ask_price: DzengiRawNumeric
+    close_time: int
+
+
+# Нормализованное транспортное представление котировки из Dzengi WebSocket.
+@dataclass(frozen=True, slots=True)
+class DzengiWebSocketQuoteResponse:
+    symbol: str
+    bid_price: DzengiRawNumeric
+    ask_price: DzengiRawNumeric
+    timestamp: int | None

app/src/market_data/acquisition/adapters/dzengi/parser.py

@@ -0,0 +1,716 @@
+# app/src/market_data/acquisition/adapters/dzengi/parser.py
+
+from __future__ import annotations
+
+from collections.abc import Mapping, Sequence
+
+from src.market_data.acquisition.adapters.dzengi.models import (
+    DzengiExchangeInfoPayload,
+    DzengiExchangeInfoResponse,
+    DzengiExchangeInfoSymbol,
+    DzengiInstrumentFilter,
+    DzengiJsonNumber,
+    DzengiJsonScalar,
+    DzengiLotSizeFilter,
+    DzengiMinNotionalFilter,
+    DzengiRateLimit,
+    DzengiRawNumeric,
+    DzengiUnknownFilter,
+    DzengiTicker24hrResponse,
+    DzengiWebSocketQuoteResponse,
+)
+from src.market_data.acquisition.exceptions import (
+    InstrumentReferenceParseError,
+    QuoteParseError,
+)
+from src.market_data.acquisition.validation.schema import (
+    ValidatedExchangeInfoDocument,
+    ValidatedQuoteDocument,
+    ValidatedWebSocketQuoteDocument,
+)
+
+
+def parse_exchange_info(
+    document: ValidatedExchangeInfoDocument,
+) -> DzengiExchangeInfoResponse:
+    """
+    Преобразовать структурно проверенный exchangeInfo в raw-модели Dzengi.
+
+    Функция не выполняет schema validation, предметную валидацию,
+    нормализацию символов или преобразование в Instrument.
+    """
+
+    payload = document.payload
+
+    return DzengiExchangeInfoResponse(
+        status=_optional_string(
+            document.status,
+            path="$.status",
+        ),
+        correlation_id=_optional_string(
+            document.correlation_id,
+            path="$.correlationId",
+        ),
+        payload=DzengiExchangeInfoPayload(
+            timezone=_optional_string(
+                payload.get("timezone"),
+                path="$.payload.timezone",
+            ),
+            server_time=_optional_int(
+                payload.get("serverTime"),
+                path="$.payload.serverTime",
+            ),
+            rate_limits=_parse_rate_limits(
+                payload.get("rateLimits"),
+                path="$.payload.rateLimits",
+            ),
+            exchange_filters=_parse_exchange_filters(
+                payload.get("exchangeFilters"),
+                path="$.payload.exchangeFilters",
+            ),
+            symbols=_parse_symbols(
+                payload["symbols"],
+                path="$.payload.symbols",
+            ),
+        ),
+    )
+
+
+def _parse_symbols(
+    value: object,
+    *,
+    path: str,
+) -> tuple[DzengiExchangeInfoSymbol, ...]:
+    items = _require_sequence(value, path=path)
+
+    symbols: list[DzengiExchangeInfoSymbol] = []
+
+    for index, item in enumerate(items):
+        item_path = f"{path}[{index}]"
+        mapping = _require_mapping(item, path=item_path)
+        symbols.append(_parse_symbol(mapping, path=item_path))
+
+    return tuple(symbols)
+
+
+def _parse_symbol(
+    item: Mapping[str, object],
+    *,
+    path: str,
+) -> DzengiExchangeInfoSymbol:
+    return DzengiExchangeInfoSymbol(
+        symbol=_required_string(
+            item.get("symbol"),
+            path=f"{path}.symbol",
+        ),
+        name=_required_string(
+            item.get("name"),
+            path=f"{path}.name",
+        ),
+        status=_required_string(
+            item.get("status"),
+            path=f"{path}.status",
+        ),
+        asset_type=_optional_string(
+            item.get("assetType"),
+            path=f"{path}.assetType",
+        ),
+        base_asset=_required_string(
+            item.get("baseAsset"),
+            path=f"{path}.baseAsset",
+        ),
+        base_asset_precision=_optional_int(
+            item.get("baseAssetPrecision"),
+            path=f"{path}.baseAssetPrecision",
+        ),
+        quote_asset=_required_string(
+            item.get("quoteAsset"),
+            path=f"{path}.quoteAsset",
+        ),
+        quote_asset_id=_optional_string(
+            item.get("quoteAssetId"),
+            path=f"{path}.quoteAssetId",
+        ),
+        quote_precision=_optional_int(
+            item.get("quotePrecision"),
+            path=f"{path}.quotePrecision",
+        ),
+        order_types=_optional_string_tuple(
+            item.get("orderTypes"),
+            path=f"{path}.orderTypes",
+        ),
+        filters=_parse_instrument_filters(
+            item.get("filters"),
+            path=f"{path}.filters",
+        ),
+        market_modes=_optional_string_tuple(
+            item.get("marketModes"),
+            path=f"{path}.marketModes",
+        ),
+        market_type=_required_string(
+            item.get("marketType"),
+            path=f"{path}.marketType",
+        ),
+        country=_optional_string(
+            item.get("country"),
+            path=f"{path}.country",
+        ),
+        sector=_optional_string(
+            item.get("sector"),
+            path=f"{path}.sector",
+        ),
+        industry=_optional_string(
+            item.get("industry"),
+            path=f"{path}.industry",
+        ),
+        trading_hours=_optional_string(
+            item.get("tradingHours"),
+            path=f"{path}.tradingHours",
+        ),
+        tick_size=_optional_json_number(
+            item.get("tickSize"),
+            path=f"{path}.tickSize",
+        ),
+        tick_value=_optional_json_number(
+            item.get("tickValue"),
+            path=f"{path}.tickValue",
+        ),
+        trading_fee=_optional_json_number(
+            item.get("tradingFee"),
+            path=f"{path}.tradingFee",
+        ),
+        exchange_fee=_optional_json_number(
+            item.get("exchangeFee"),
+            path=f"{path}.exchangeFee",
+        ),
+        long_rate=_optional_json_number(
+            item.get("longRate"),
+            path=f"{path}.longRate",
+        ),
+        short_rate=_optional_json_number(
+            item.get("shortRate"),
+            path=f"{path}.shortRate",
+        ),
+        swap_charge_interval=_optional_int(
+            item.get("swapChargeInterval"),
+            path=f"{path}.swapChargeInterval",
+        ),
+        min_sl_gap=_optional_json_number(
+            item.get("minSLGap"),
+            path=f"{path}.minSLGap",
+        ),
+        max_sl_gap=_optional_json_number(
+            item.get("maxSLGap"),
+            path=f"{path}.maxSLGap",
+        ),
+        min_tp_gap=_optional_json_number(
+            item.get("minTPGap"),
+            path=f"{path}.minTPGap",
+        ),
+        max_tp_gap=_optional_json_number(
+            item.get("maxTPGap"),
+            path=f"{path}.maxTPGap",
+        ),
+    )
+
+
+def _parse_rate_limits(
+    value: object,
+    *,
+    path: str,
+) -> tuple[DzengiRateLimit, ...]:
+    if value is None:
+        return ()
+
+    items = _require_sequence(value, path=path)
+    rate_limits: list[DzengiRateLimit] = []
+
+    for index, item in enumerate(items):
+        item_path = f"{path}[{index}]"
+        mapping = _require_mapping(item, path=item_path)
+
+        rate_limits.append(
+            DzengiRateLimit(
+                interval=_required_string(
+                    mapping.get("interval"),
+                    path=f"{item_path}.interval",
+                ),
+                interval_num=_required_int(
+                    mapping.get("intervalNum"),
+                    path=f"{item_path}.intervalNum",
+                ),
+                limit=_required_int(
+                    mapping.get("limit"),
+                    path=f"{item_path}.limit",
+                ),
+                rate_limit_type=_required_string(
+                    mapping.get("rateLimitType"),
+                    path=f"{item_path}.rateLimitType",
+                ),
+            )
+        )
+
+    return tuple(rate_limits)
+
+
+def _parse_exchange_filters(
+    value: object,
+    *,
+    path: str,
+) -> tuple[DzengiUnknownFilter, ...]:
+    if value is None:
+        return ()
+
+    items = _require_sequence(value, path=path)
+    filters: list[DzengiUnknownFilter] = []
+
+    for index, item in enumerate(items):
+        item_path = f"{path}[{index}]"
+        mapping = _require_mapping(item, path=item_path)
+
+        filters.append(
+            _parse_unknown_filter(
+                mapping,
+                path=item_path,
+                filter_type_required=False,
+            )
+        )
+
+    return tuple(filters)
+
+
+def _parse_instrument_filters(
+    value: object,
+    *,
+    path: str,
+) -> tuple[DzengiInstrumentFilter, ...]:
+    if value is None:
+        return ()
+
+    items = _require_sequence(value, path=path)
+    filters: list[DzengiInstrumentFilter] = []
+
+    for index, item in enumerate(items):
+        item_path = f"{path}[{index}]"
+        mapping = _require_mapping(item, path=item_path)
+
+        filter_type = _required_string(
+            mapping.get("filterType"),
+            path=f"{item_path}.filterType",
+        )
+
+        if filter_type == "LOT_SIZE":
+            filters.append(
+                DzengiLotSizeFilter(
+                    filter_type=filter_type,
+                    min_qty=_optional_raw_numeric(
+                        mapping.get("minQty"),
+                        path=f"{item_path}.minQty",
+                    ),
+                    max_qty=_optional_raw_numeric(
+                        mapping.get("maxQty"),
+                        path=f"{item_path}.maxQty",
+                    ),
+                    step_size=_optional_raw_numeric(
+                        mapping.get("stepSize"),
+                        path=f"{item_path}.stepSize",
+                    ),
+                )
+            )
+            continue
+
+        if filter_type == "MIN_NOTIONAL":
+            filters.append(
+                DzengiMinNotionalFilter(
+                    filter_type=filter_type,
+                    min_notional=_optional_raw_numeric(
+                        mapping.get("minNotional"),
+                        path=f"{item_path}.minNotional",
+                    ),
+                )
+            )
+            continue
+
+        filters.append(
+            _parse_unknown_filter(
+                mapping,
+                path=item_path,
+                filter_type_required=True,
+            )
+        )
+
+    return tuple(filters)
+
+
+def _parse_unknown_filter(
+    mapping: Mapping[str, object],
+    *,
+    path: str,
+    filter_type_required: bool,
+) -> DzengiUnknownFilter:
+    if filter_type_required:
+        filter_type = _required_string(
+            mapping.get("filterType"),
+            path=f"{path}.filterType",
+        )
+    else:
+        filter_type = _optional_string(
+            mapping.get("filterType"),
+            path=f"{path}.filterType",
+        ) or ""
+
+    fields: list[tuple[str, DzengiJsonScalar]] = []
+
+    for key, value in mapping.items():
+        if key == "filterType":
+            continue
+
+        fields.append(
+            (
+                key,
+                _require_json_scalar(
+                    value,
+                    path=f"{path}.{key}",
+                ),
+            )
+        )
+
+    return DzengiUnknownFilter(
+        filter_type=filter_type,
+        fields=tuple(fields),
+    )
+
+
+def _optional_string_tuple(
+    value: object,
+    *,
+    path: str,
+) -> tuple[str, ...]:
+    if value is None:
+        return ()
+
+    items = _require_sequence(value, path=path)
+    result: list[str] = []
+
+    for index, item in enumerate(items):
+        result.append(
+            _required_string(
+                item,
+                path=f"{path}[{index}]",
+            )
+        )
+
+    return tuple(result)
+
+
+def _required_string(
+    value: object,
+    *,
+    path: str,
+) -> str:
+    if not isinstance(value, str):
+        raise InstrumentReferenceParseError(
+            f"{path} должен быть строкой, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def _optional_string(
+    value: object,
+    *,
+    path: str,
+) -> str | None:
+    if value is None:
+        return None
+
+    return _required_string(value, path=path)
+
+
+def _required_int(
+    value: object,
+    *,
+    path: str,
+) -> int:
+    if isinstance(value, bool) or not isinstance(value, int):
+        raise InstrumentReferenceParseError(
+            f"{path} должен быть целым числом, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def _optional_int(
+    value: object,
+    *,
+    path: str,
+) -> int | None:
+    if value is None:
+        return None
+
+    return _required_int(value, path=path)
+
+
+def _optional_json_number(
+    value: object,
+    *,
+    path: str,
+) -> DzengiJsonNumber | None:
+    if value is None:
+        return None
+
+    if isinstance(value, bool) or not isinstance(value, (int, float)):
+        raise InstrumentReferenceParseError(
+            f"{path} должен быть JSON-числом, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def _optional_raw_numeric(
+    value: object,
+    *,
+    path: str,
+) -> DzengiRawNumeric | None:
+    if value is None:
+        return None
+
+    if isinstance(value, bool) or not isinstance(value, (str, int, float)):
+        raise InstrumentReferenceParseError(
+            f"{path} должен быть строкой или JSON-числом, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def _require_json_scalar(
+    value: object,
+    *,
+    path: str,
+) -> DzengiJsonScalar:
+    if value is None or isinstance(value, (str, bool)):
+        return value
+
+    if isinstance(value, (int, float)):
+        return value
+
+    raise InstrumentReferenceParseError(
+        f"{path} должен быть скалярным JSON-значением, "
+        f"получен {type(value).__name__}."
+    )
+
+
+def _require_mapping(
+    value: object,
+    *,
+    path: str,
+) -> Mapping[str, object]:
+    if not isinstance(value, Mapping):
+        raise InstrumentReferenceParseError(
+            f"{path} должен быть отображением, "
+            f"получен {type(value).__name__}."
+        )
+
+    for key in value:
+        if not isinstance(key, str):
+            raise InstrumentReferenceParseError(
+                f"{path} содержит нестроковый ключ "
+                f"типа {type(key).__name__}."
+            )
+
+    return value
+
+
+def _require_sequence(
+    value: object,
+    *,
+    path: str,
+) -> Sequence[object]:
+    if isinstance(value, (str, bytes)) or not isinstance(value, Sequence):
+        raise InstrumentReferenceParseError(
+            f"{path} должен быть последовательностью, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+def parse_quote(
+    document: ValidatedQuoteDocument,
+) -> DzengiTicker24hrResponse:
+    """
+    Преобразовать структурно проверенный ticker/24hr в raw-модель Dzengi.
+
+    Функция не выполняет schema validation, предметную валидацию
+    или mapping во внутреннюю модель Quote.
+    """
+
+    payload = document.payload
+
+    return DzengiTicker24hrResponse(
+        symbol=_quote_required_string(
+            payload.get("symbol"),
+            path="$.payload.symbol",
+        ),
+        last_price=_quote_required_raw_numeric(
+            payload.get("lastPrice"),
+            path="$.payload.lastPrice",
+        ),
+        bid_price=_quote_required_raw_numeric(
+            payload.get("bidPrice"),
+            path="$.payload.bidPrice",
+        ),
+        ask_price=_quote_required_raw_numeric(
+            payload.get("askPrice"),
+            path="$.payload.askPrice",
+        ),
+        close_time=_quote_required_int(
+            payload.get("closeTime"),
+            path="$.payload.closeTime",
+        ),
+    )
+
+
+def _quote_required_string(
+    value: object,
+    *,
+    path: str,
+) -> str:
+    if not isinstance(value, str):
+        raise QuoteParseError(
+            f"{path} должен быть строкой, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def _quote_required_raw_numeric(
+    value: object,
+    *,
+    path: str,
+) -> DzengiRawNumeric:
+    if isinstance(value, bool) or not isinstance(value, (str, int, float)):
+        raise QuoteParseError(
+            f"{path} должен быть строкой или JSON-числом, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def _quote_required_int(
+    value: object,
+    *,
+    path: str,
+) -> int:
+    if isinstance(value, bool) or not isinstance(value, int):
+        raise QuoteParseError(
+            f"{path} должен быть целым числом, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+
+def parse_dzengi_websocket_quote(
+    document: ValidatedWebSocketQuoteDocument,
+) -> DzengiWebSocketQuoteResponse:
+    """Преобразовать проверенное WebSocket-сообщение в raw-модель Dzengi."""
+
+    payload = document.payload
+    symbol_value = (
+        payload.get("symbolName")
+        or payload.get("symbol")
+        or document.root_symbol
+    )
+
+    symbol = _quote_required_string(
+        symbol_value,
+        path="$.payload.symbol",
+    )
+
+    if "bid" in payload:
+        bid_price = _quote_required_raw_numeric(
+            payload.get("bid"),
+            path="$.payload.bid",
+        )
+        ask_key = "ofr" if "ofr" in payload else "ask"
+        ask_price = _quote_required_raw_numeric(
+            payload.get(ask_key),
+            path=f"$.payload.{ask_key}",
+        )
+    else:
+        bid_price = _websocket_depth_price(
+            payload.get("bids"),
+            side="bids",
+        )
+        ask_price = _websocket_depth_price(
+            payload.get("asks"),
+            side="asks",
+        )
+
+    timestamp = _websocket_optional_timestamp(
+        payload.get("timestamp"),
+        path="$.payload.timestamp",
+    )
+
+    return DzengiWebSocketQuoteResponse(
+        symbol=symbol,
+        bid_price=bid_price,
+        ask_price=ask_price,
+        timestamp=timestamp,
+    )
+
+
+def _websocket_depth_price(
+    value: object,
+    *,
+    side: str,
+) -> DzengiRawNumeric:
+    if not isinstance(value, list) or not value:
+        raise QuoteParseError(
+            f"$.payload.{side} должен быть непустым списком."
+        )
+
+    first = value[0]
+
+    if isinstance(first, list):
+        if not first:
+            raise QuoteParseError(
+                f"$.payload.{side}[0] не должен быть пустым."
+            )
+        return _quote_required_raw_numeric(
+            first[0],
+            path=f"$.payload.{side}[0][0]",
+        )
+
+    if isinstance(first, Mapping):
+        for key in ("price", "p", "bidPrice", "askPrice"):
+            if key in first:
+                return _quote_required_raw_numeric(
+                    first.get(key),
+                    path=f"$.payload.{side}[0].{key}",
+                )
+
+        raise QuoteParseError(
+            f"$.payload.{side}[0] не содержит поле цены."
+        )
+
+    raise QuoteParseError(
+        f"$.payload.{side}[0] должен быть JSON-массивом или объектом."
+    )
+
+
+def _websocket_optional_timestamp(
+    value: object,
+    *,
+    path: str,
+) -> int | None:
+    if value is None:
+        return None
+
+    return _quote_required_int(value, path=path)

app/src/market_data/acquisition/adapters/dzengi/rest.py

@@ -0,0 +1,106 @@
+# app/src/market_data/acquisition/adapters/dzengi/rest.py
+
+from __future__ import annotations
+
+from typing import Protocol
+
+from src.integrations.exchange.rest_client import ExchangeRestClient
+from src.market_data.acquisition.exceptions import (
+    InstrumentReferenceTransportError,
+    QuoteTransportError,
+)
+
+
+_EXCHANGE_INFO_PATH = "/api/v1/exchangeInfo"
+_TICKER_24HR_PATH = "/api/v1/ticker/24hr"
+
+
+# Минимальный транспортный контракт, необходимый Dzengi REST adapter.
+class _PayloadRestClient(Protocol):
+    def get_payload(
+        self,
+        path: str,
+        params: dict[str, str] | None = None,
+        headers: dict[str, str] | None = None,
+    ) -> object:
+        ...
+
+
+class DzengiInstrumentDocumentSource:
+    """
+    Источник сырого документа Instrument Reference Data через Dzengi REST API.
+
+    На переходном этапе использует legacy ExchangeRestClient.
+    Зависимость должна быть удалена после появления общего transport-клиента
+    или после полного вывода integrations/exchange из эксплуатации.
+    """
+
+    def __init__(
+        self,
+        client: _PayloadRestClient | None = None,
+    ) -> None:
+        self._client = client
+
+    def fetch_instrument_document(self) -> object:
+        """
+        Получить декодированный ответ Dzengi exchangeInfo без его обработки.
+
+        Метод не выполняет schema validation, parsing, value validation,
+        mapping или кэширование.
+        """
+
+        try:
+            client: _PayloadRestClient = (
+                self._client
+                if self._client is not None
+                else ExchangeRestClient()
+            )
+
+            return client.get_payload(_EXCHANGE_INFO_PATH)
+
+        except Exception as exc:
+            raise InstrumentReferenceTransportError(
+                "Не удалось получить Instrument Reference Data "
+                f"от Dzengi: {exc}"
+            ) from exc
+
+
+class DzengiQuoteDocumentSource:
+    """Источник сырого документа текущей котировки через Dzengi REST API."""
+
+    def __init__(
+        self,
+        client: _PayloadRestClient | None = None,
+    ) -> None:
+        self._client = client
+
+    def fetch_quote_document(
+        self,
+        symbol: str,
+    ) -> object:
+        """
+        Получить декодированный ответ Dzengi ticker/24hr без его обработки.
+
+        Метод не выполняет нормализацию symbol, schema validation, parsing,
+        value validation, mapping, retry или кэширование.
+        """
+
+        try:
+            client: _PayloadRestClient = (
+                self._client
+                if self._client is not None
+                else ExchangeRestClient()
+            )
+
+            return client.get_payload(
+                _TICKER_24HR_PATH,
+                params={
+                    "symbol": symbol,
+                },
+            )
+
+        except Exception as exc:
+            raise QuoteTransportError(
+                "Не удалось получить текущую котировку "
+                f"от Dzengi для символа '{symbol}': {exc}"
+            ) from exc

app/src/market_data/acquisition/adapters/dzengi/websocket.py

@@ -0,0 +1,37 @@
+# app/src/market_data/acquisition/adapters/dzengi/websocket.py
+
+from __future__ import annotations
+
+from datetime import datetime, timezone
+
+from src.market_data.acquisition.adapters.dzengi.mapper import (
+    map_dzengi_websocket_quote_to_quote,
+)
+from src.market_data.acquisition.adapters.dzengi.parser import (
+    parse_dzengi_websocket_quote,
+)
+from src.market_data.acquisition.models.quote import Quote
+from src.market_data.acquisition.validation.schema import (
+    validate_dzengi_websocket_quote_schema,
+)
+from src.market_data.acquisition.validation.values import (
+    validate_dzengi_websocket_quote_values,
+)
+
+
+# Преобразует одно декодированное сообщение Dzengi WebSocket в Quote.
+class DzengiWebSocketQuoteAdapter:
+    def map_message(
+        self,
+        document: object,
+        *,
+        received_at: datetime | None = None,
+    ) -> Quote:
+        validated = validate_dzengi_websocket_quote_schema(document)
+        response = parse_dzengi_websocket_quote(validated)
+        validate_dzengi_websocket_quote_values(response)
+
+        return map_dzengi_websocket_quote_to_quote(
+            response,
+            received_at=received_at or datetime.now(timezone.utc),
+        )

app/src/market_data/acquisition/exceptions.py

@@ -0,0 +1,67 @@
+# app/src/market_data/acquisition/exceptions.py
+
+from __future__ import annotations
+
+
+# Базовая ошибка подсистемы получения рыночных данных.
+class MarketDataAcquisitionError(Exception):
+    pass
+
+
+# Ошибка получения Instrument Reference Data от внешнего источника.
+class InstrumentReferenceTransportError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка структуры документа Instrument Reference Data.
+class InstrumentReferenceSchemaError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка преобразования проверенного документа в raw-модели адаптера.
+class InstrumentReferenceParseError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка допустимости значений Instrument Reference Data.
+class InstrumentReferenceValueError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка преобразования raw-модели источника во внутреннюю модель Instrument.
+class InstrumentReferenceMappingError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка регистрации или получения Instrument Feed.
+class InstrumentFeedRegistryError(MarketDataAcquisitionError):
+    pass
+
+# Ошибка получения Quotes Feed от внешнего источника.
+class QuoteTransportError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка структуры документа Quotes Feed.
+class QuoteSchemaError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка преобразования проверенного документа в raw-модель котировки.
+class QuoteParseError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка допустимости значений Quotes Feed.
+class QuoteValueError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка преобразования raw-модели источника во внутреннюю модель Quote.
+class QuoteMappingError(MarketDataAcquisitionError):
+    pass
+
+
+# Ошибка регистрации или получения Quotes Feed.
+class QuoteFeedRegistryError(MarketDataAcquisitionError):
+    pass

app/src/market_data/acquisition/feeds/instrument_feed.py

@@ -0,0 +1,33 @@
+# app/src/market_data/acquisition/feeds/instrument_feed.py
+
+from __future__ import annotations
+
+from src.market_data.acquisition.models.instrument import Instrument
+from src.market_data.acquisition.protocol import (
+    InstrumentDocumentHandler,
+    InstrumentDocumentSource,
+)
+
+
+# Feed справочника инструментов: получает документ и передаёт его обработчику.
+class InstrumentFeed:
+    def __init__(
+        self,
+        *,
+        source: InstrumentDocumentSource,
+        handler: InstrumentDocumentHandler,
+    ) -> None:
+        self._source = source
+        self._handler = handler
+
+    def load_instruments(self) -> tuple[Instrument, ...]:
+        """
+        Получить документ от источника и преобразовать его в модели Instrument.
+
+        Feed не выполняет transport, parsing, validation, mapping,
+        кэширование или обработку ошибок самостоятельно.
+        """
+
+        document = self._source.fetch_instrument_document()
+
+        return self._handler.handle_instrument_document(document)

app/src/market_data/acquisition/feeds/quotes_feed.py

@@ -0,0 +1,36 @@
+# app/src/market_data/acquisition/feeds/quotes_feed.py
+
+from __future__ import annotations
+
+from src.market_data.acquisition.models.quote import Quote
+from src.market_data.acquisition.protocol import (
+    QuoteDocumentHandler,
+    QuoteDocumentSource,
+)
+
+
+# Feed текущих котировок: получает документ и передаёт его обработчику.
+class QuotesFeed:
+    def __init__(
+        self,
+        *,
+        source: QuoteDocumentSource,
+        handler: QuoteDocumentHandler,
+    ) -> None:
+        self._source = source
+        self._handler = handler
+
+    def load_quote(
+        self,
+        symbol: str,
+    ) -> Quote:
+        """
+        Получить документ котировки и преобразовать его в модель Quote.
+
+        Feed не выполняет transport, parsing, validation, mapping,
+        нормализацию symbol, retry, кэширование или обработку ошибок.
+        """
+
+        document = self._source.fetch_quote_document(symbol)
+
+        return self._handler.handle_quote_document(document)

app/src/market_data/acquisition/feeds/status_feed.py

@@ -0,0 +1,2 @@
+# app/src/market_data/acquisition/feeds/status_feed.py
+

app/src/market_data/acquisition/handlers/instrument_handler.py

@@ -0,0 +1,32 @@
+# app/src/market_data/acquisition/handlers/instrument_handler.py
+
+from __future__ import annotations
+
+from src.market_data.acquisition.adapters.dzengi.mapper import (
+    map_dzengi_exchange_info_to_instruments,
+)
+from src.market_data.acquisition.adapters.dzengi.parser import (
+    parse_exchange_info,
+)
+from src.market_data.acquisition.models.instrument import Instrument
+from src.market_data.acquisition.validation.schema import (
+    validate_exchange_info_schema,
+)
+from src.market_data.acquisition.validation.values import (
+    validate_exchange_info_values,
+)
+
+
+# Обработчик документа Instrument Reference Data формата Dzengi exchangeInfo.
+class DzengiInstrumentDocumentHandler:
+    def handle_instrument_document(
+        self,
+        document: object,
+    ) -> tuple[Instrument, ...]:
+        validated_document = validate_exchange_info_schema(document)
+
+        response = parse_exchange_info(validated_document)
+
+        validate_exchange_info_values(response)
+
+        return map_dzengi_exchange_info_to_instruments(response)

app/src/market_data/acquisition/handlers/quotes_handler.py

@@ -0,0 +1,35 @@
+# app/src/market_data/acquisition/handlers/quotes_handler.py
+
+from __future__ import annotations
+
+from datetime import datetime, timezone
+
+from src.market_data.acquisition.adapters.dzengi.mapper import (
+    map_dzengi_ticker_to_quote,
+)
+from src.market_data.acquisition.adapters.dzengi.parser import parse_quote
+from src.market_data.acquisition.models.quote import Quote
+from src.market_data.acquisition.validation.schema import (
+    validate_quote_schema,
+)
+from src.market_data.acquisition.validation.values import (
+    validate_quote_values,
+)
+
+
+# Обработчик документа Quotes Feed формата Dzengi ticker/24hr.
+class DzengiQuoteDocumentHandler:
+    def handle_quote_document(
+        self,
+        document: object,
+    ) -> Quote:
+        validated_document = validate_quote_schema(document)
+
+        response = parse_quote(validated_document)
+
+        validate_quote_values(response)
+
+        return map_dzengi_ticker_to_quote(
+            response,
+            received_at=datetime.now(timezone.utc),
+        )

app/src/market_data/acquisition/handlers/status_handler.py

@@ -0,0 +1,2 @@
+# app/src/market_data/acquisition/handlers/status_handler.py
+

app/src/market_data/acquisition/models/__init__.py

@@ -0,0 +1 @@
+# app/src/market_data/acquisition/models/__init__.py

app/src/market_data/acquisition/models/instrument.py

@@ -0,0 +1,38 @@
+# app/src/market_data/acquisition/models/instrument.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from decimal import Decimal
+
+
+# Независимое от источника справочное описание торгового инструмента.
+@dataclass(frozen=True, slots=True)
+class Instrument:
+    symbol: str
+    name: str
+    status: str
+
+    base_asset: str
+    quote_asset: str
+    asset_type: str | None
+
+    market_type: str
+    market_modes: tuple[str, ...]
+    order_types: tuple[str, ...]
+
+    base_asset_precision: int | None
+    quote_asset_precision: int | None
+
+    tick_size: Decimal | None
+    tick_value: Decimal | None
+
+    step_size: Decimal | None
+    min_qty: Decimal | None
+    max_qty: Decimal | None
+    min_notional: Decimal | None
+
+    country: str | None
+    sector: str | None
+    industry: str | None
+    trading_hours: str | None

app/src/market_data/acquisition/models/quote.py

@@ -0,0 +1,22 @@
+# app/src/market_data/acquisition/models/quote.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from datetime import datetime
+from decimal import Decimal
+
+
+# Независимый от источника снимок текущей рыночной котировки инструмента.
+@dataclass(frozen=True, slots=True)
+class Quote:
+    symbol: str
+
+    last_price: Decimal
+    bid_price: Decimal
+    ask_price: Decimal
+
+    exchange_timestamp: datetime | None
+    received_at: datetime
+
+    source: str

app/src/market_data/acquisition/models/status.py

@@ -0,0 +1,88 @@
+# app/src/market_data/acquisition/models/status.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from enum import StrEnum
+
+
+# Каноническое состояние торговой доступности инструмента.
+class InstrumentTradingState(StrEnum):
+    OPEN = "OPEN"
+    BREAK = "BREAK"
+    NOT_TRADABLE = "NOT_TRADABLE"
+    UNKNOWN = "UNKNOWN"
+
+
+# Результат классификации сырого статуса инструмента.
+@dataclass(frozen=True, slots=True)
+class InstrumentStatusClassification:
+    state: InstrumentTradingState
+    normalized_status: str | None
+
+
+_OPEN_STATUSES = frozenset(
+    {
+        "TRADING",
+        "OPEN",
+        "ACTIVE",
+        "ENABLED",
+        "ONLINE",
+    }
+)
+
+_NOT_TRADABLE_STATUSES = frozenset(
+    {
+        "NOT_TRADABLE",
+        "TRADING_DISABLED",
+        "MARKET_DISABLED",
+        "UNAVAILABLE_FOR_TRADING",
+        "CLOSE_ONLY",
+        "REDUCE_ONLY",
+        "VIEW_ONLY",
+    }
+)
+
+_BREAK_STATUSES = frozenset(
+    {
+        "BREAK",
+        "CLOSED",
+        "HALT",
+        "HALTED",
+        "PAUSED",
+        "SUSPENDED",
+        "DISABLED",
+        "SETTLING",
+        "POST_ONLY",
+    }
+)
+
+
+# Классифицировать сырой статус торгового инструмента.
+def classify_instrument_status(
+    raw_status: str | None,
+) -> InstrumentStatusClassification:
+    normalized_status = str(raw_status or "").strip().upper()
+
+    if normalized_status in _OPEN_STATUSES:
+        return InstrumentStatusClassification(
+            state=InstrumentTradingState.OPEN,
+            normalized_status=normalized_status,
+        )
+
+    if normalized_status in _NOT_TRADABLE_STATUSES:
+        return InstrumentStatusClassification(
+            state=InstrumentTradingState.NOT_TRADABLE,
+            normalized_status=normalized_status,
+        )
+
+    if normalized_status in _BREAK_STATUSES:
+        return InstrumentStatusClassification(
+            state=InstrumentTradingState.BREAK,
+            normalized_status=normalized_status,
+        )
+
+    return InstrumentStatusClassification(
+        state=InstrumentTradingState.UNKNOWN,
+        normalized_status=normalized_status or None,
+    )

app/src/market_data/acquisition/protocol.py

@@ -0,0 +1,86 @@
+# app/src/market_data/acquisition/protocol.py
+
+from __future__ import annotations
+
+from typing import Protocol, runtime_checkable
+
+from src.market_data.acquisition.models.instrument import Instrument
+from src.market_data.acquisition.models.quote import Quote
+
+
+# Источник сырого документа Instrument Reference Data.
+@runtime_checkable
+class InstrumentDocumentSource(Protocol):
+    def fetch_instrument_document(self) -> object:
+        """
+        Получить декодированный транспортный документ Instrument Reference Data.
+
+        Источник не выполняет schema validation, parsing, value validation
+        или mapping во внутреннюю модель Instrument.
+        """
+        ...
+
+
+# Обработчик сырого документа Instrument Reference Data.
+@runtime_checkable
+class InstrumentDocumentHandler(Protocol):
+    def handle_instrument_document(
+        self,
+        document: object,
+    ) -> tuple[Instrument, ...]:
+        """
+        Преобразовать сырой документ в проверенные внутренние модели Instrument.
+        """
+        ...
+
+
+# Источник готового справочника инструментов для Acquisition Service.
+@runtime_checkable
+class InstrumentFeedProtocol(Protocol):
+    def load_instruments(self) -> tuple[Instrument, ...]:
+        """
+        Получить полный immutable-набор внутренних моделей Instrument.
+        """
+        ...
+
+
+# Источник сырого документа Quotes Feed.
+@runtime_checkable
+class QuoteDocumentSource(Protocol):
+    def fetch_quote_document(
+        self,
+        symbol: str,
+    ) -> object:
+        """
+        Получить декодированный транспортный документ текущей котировки.
+
+        Источник не выполняет schema validation, parsing, value validation
+        или mapping во внутреннюю модель Quote.
+        """
+        ...
+
+
+# Обработчик сырого документа Quotes Feed.
+@runtime_checkable
+class QuoteDocumentHandler(Protocol):
+    def handle_quote_document(
+        self,
+        document: object,
+    ) -> Quote:
+        """
+        Преобразовать сырой документ в проверенную внутреннюю модель Quote.
+        """
+        ...
+
+
+# Источник готовой текущей котировки для Acquisition Service.
+@runtime_checkable
+class QuoteFeedProtocol(Protocol):
+    def load_quote(
+        self,
+        symbol: str,
+    ) -> Quote:
+        """
+        Получить внутреннюю модель текущей котировки инструмента.
+        """
+        ...

app/src/market_data/acquisition/registry.py

@@ -0,0 +1,142 @@
+# app/src/market_data/acquisition/registry.py
+
+from __future__ import annotations
+
+from src.market_data.acquisition.exceptions import (
+    InstrumentFeedRegistryError,
+    QuoteFeedRegistryError,
+)
+from src.market_data.acquisition.protocol import (
+    InstrumentFeedProtocol,
+    QuoteFeedProtocol,
+)
+
+
+# Реестр доступных Feed справочника инструментов.
+class InstrumentFeedRegistry:
+    def __init__(self) -> None:
+        self._feeds: dict[str, InstrumentFeedProtocol] = {}
+
+    def register(
+        self,
+        source_name: str,
+        feed: InstrumentFeedProtocol,
+    ) -> None:
+        """
+        Зарегистрировать Instrument Feed для указанного источника.
+
+        Повторная регистрация того же имени запрещена, чтобы исключить
+        неявную замену production-зависимости.
+        """
+
+        normalized_source_name = self._normalize_source_name(source_name)
+
+        if not isinstance(feed, InstrumentFeedProtocol):
+            raise InstrumentFeedRegistryError(
+                f"Объект для источника '{normalized_source_name}' "
+                "не соответствует InstrumentFeedProtocol."
+            )
+
+        if normalized_source_name in self._feeds:
+            raise InstrumentFeedRegistryError(
+                f"Instrument Feed для источника "
+                f"'{normalized_source_name}' уже зарегистрирован."
+            )
+
+        self._feeds[normalized_source_name] = feed
+
+    def get(
+        self,
+        source_name: str,
+    ) -> InstrumentFeedProtocol:
+        """Вернуть зарегистрированный Instrument Feed по имени источника."""
+
+        normalized_source_name = self._normalize_source_name(source_name)
+
+        feed = self._feeds.get(normalized_source_name)
+
+        if feed is None:
+            raise InstrumentFeedRegistryError(
+                f"Instrument Feed для источника "
+                f"'{normalized_source_name}' не зарегистрирован."
+            )
+
+        return feed
+
+    def _normalize_source_name(
+        self,
+        source_name: str,
+    ) -> str:
+        normalized_source_name = source_name.strip()
+
+        if not normalized_source_name:
+            raise InstrumentFeedRegistryError(
+                "Имя источника Instrument Feed не должно быть пустым."
+            )
+
+        return normalized_source_name
+
+
+# Реестр доступных потоков текущих котировок.
+class QuoteFeedRegistry:
+    def __init__(self) -> None:
+        self._feeds: dict[str, QuoteFeedProtocol] = {}
+
+    def register(
+        self,
+        source_name: str,
+        feed: QuoteFeedProtocol,
+    ) -> None:
+        """
+        Зарегистрировать Quotes Feed для указанного источника.
+
+        Повторная регистрация того же имени запрещена, чтобы исключить
+        неявную замену production-зависимости.
+        """
+
+        normalized_source_name = self._normalize_source_name(source_name)
+
+        if not isinstance(feed, QuoteFeedProtocol):
+            raise QuoteFeedRegistryError(
+                f"Объект для источника '{normalized_source_name}' "
+                "не соответствует QuoteFeedProtocol."
+            )
+
+        if normalized_source_name in self._feeds:
+            raise QuoteFeedRegistryError(
+                f"Quotes Feed для источника "
+                f"'{normalized_source_name}' уже зарегистрирован."
+            )
+
+        self._feeds[normalized_source_name] = feed
+
+    def get(
+        self,
+        source_name: str,
+    ) -> QuoteFeedProtocol:
+        """Вернуть зарегистрированный Quotes Feed по имени источника."""
+
+        normalized_source_name = self._normalize_source_name(source_name)
+
+        feed = self._feeds.get(normalized_source_name)
+
+        if feed is None:
+            raise QuoteFeedRegistryError(
+                f"Quotes Feed для источника "
+                f"'{normalized_source_name}' не зарегистрирован."
+            )
+
+        return feed
+
+    def _normalize_source_name(
+        self,
+        source_name: str,
+    ) -> str:
+        normalized_source_name = source_name.strip()
+
+        if not normalized_source_name:
+            raise QuoteFeedRegistryError(
+                "Имя источника Quotes Feed не должно быть пустым."
+            )
+
+        return normalized_source_name

app/src/market_data/acquisition/service.py

@@ -0,0 +1,62 @@
+# app/src/market_data/acquisition/service.py
+
+from __future__ import annotations
+
+from src.market_data.acquisition.models.instrument import Instrument
+from src.market_data.acquisition.models.quote import Quote
+from src.market_data.acquisition.registry import (
+    InstrumentFeedRegistry,
+    QuoteFeedRegistry,
+)
+
+
+# Application-level сервис получения справочника инструментов.
+class InstrumentAcquisitionService:
+    def __init__(
+        self,
+        *,
+        registry: InstrumentFeedRegistry,
+    ) -> None:
+        self._registry = registry
+
+    def load_instruments(
+        self,
+        source_name: str,
+    ) -> tuple[Instrument, ...]:
+        """
+        Получить Instrument Feed из Registry и загрузить справочник инструментов.
+
+        Service не создаёт Feed, не выполняет transport, parsing, validation,
+        mapping, retry, кэширование или преобразование результата.
+        """
+
+        feed = self._registry.get(source_name)
+
+        return feed.load_instruments()
+
+
+# Application-level сервис получения текущих котировок.
+class QuoteAcquisitionService:
+    def __init__(
+        self,
+        *,
+        registry: QuoteFeedRegistry,
+    ) -> None:
+        self._registry = registry
+
+    def load_quote(
+        self,
+        source_name: str,
+        symbol: str,
+    ) -> Quote:
+        """
+        Получить Quotes Feed из Registry и загрузить текущую котировку.
+
+        Service не создаёт Feed, не выполняет transport, parsing, validation,
+        mapping, нормализацию symbol, retry, кэширование или преобразование
+        результата.
+        """
+
+        feed = self._registry.get(source_name)
+
+        return feed.load_quote(symbol)

app/src/market_data/acquisition/symbols.py

@@ -0,0 +1,45 @@
+# app/src/market_data/acquisition/symbols.py
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+
+# Привести идентификатор торгового инструмента к базовой канонической форме.
+def normalize_symbol(raw_symbol: str) -> str:
+    return (raw_symbol or "").strip().upper()
+
+
+# Сформировать упорядоченные варианты идентификатора инструмента.
+def symbol_candidates(raw_symbol: str) -> list[str]:
+    value = normalize_symbol(raw_symbol)
+
+    if not value:
+        return []
+
+    candidates = [value]
+
+    compact = value.replace("%2F", "/")
+
+    if compact not in candidates:
+        candidates.append(compact)
+
+    no_spaces = compact.replace(" ", "")
+
+    if no_spaces not in candidates:
+        candidates.append(no_spaces)
+
+    return candidates
+
+
+# Найти индекс первого доступного символа с учётом порядка кандидатов.
+def resolve_symbol_index(
+    raw_symbol: str,
+    available_symbols: Sequence[str],
+) -> int | None:
+    for candidate in symbol_candidates(raw_symbol):
+        for index, available_symbol in enumerate(available_symbols):
+            if normalize_symbol(available_symbol) == candidate:
+                return index
+
+    return None

app/src/market_data/acquisition/validation/schema.py

@@ -0,0 +1,400 @@
+# app/src/market_data/acquisition/validation/schema.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from types import MappingProxyType
+from typing import Mapping
+
+from src.market_data.acquisition.exceptions import (
+    InstrumentReferenceSchemaError,
+    QuoteSchemaError,
+)
+
+
+# Проверенное структурное представление ответа exchangeInfo.
+@dataclass(frozen=True, slots=True)
+class ValidatedExchangeInfoDocument:
+    payload: Mapping[str, object]
+    is_wrapped: bool
+    status: object | None
+    correlation_id: object | None
+
+
+def validate_exchange_info_schema(
+    document: object,
+) -> ValidatedExchangeInfoDocument:
+    """
+    Проверить структуру ответа exchangeInfo без разбора предметных значений.
+
+    Поддерживаются:
+
+    1. Unwrapped-формат:
+
+       {
+           "symbols": [...]
+       }
+
+    2. Wrapped-формат:
+
+       {
+           "status": "OK",
+           "correlationId": "2",
+           "payload": {
+               "symbols": [...]
+           }
+       }
+    """
+
+    root = _require_mapping(
+        document,
+        path="$",
+    )
+
+    is_wrapped = "payload" in root
+
+    if is_wrapped:
+        payload = _require_mapping(
+            root.get("payload"),
+            path="$.payload",
+        )
+    else:
+        payload = root
+
+    _validate_exchange_info_payload(payload)
+
+    return ValidatedExchangeInfoDocument(
+        payload=MappingProxyType(dict(payload)),
+        is_wrapped=is_wrapped,
+        status=root.get("status") if is_wrapped else None,
+        correlation_id=(
+            root.get("correlationId")
+            if is_wrapped
+            else None
+        ),
+    )
+
+
+def _validate_exchange_info_payload(
+    payload: Mapping[str, object],
+) -> None:
+    symbols = _require_list(
+        payload.get("symbols"),
+        path="$.payload.symbols",
+    )
+
+    for index, symbol in enumerate(symbols):
+        symbol_path = f"$.payload.symbols[{index}]"
+
+        symbol_mapping = _require_mapping(
+            symbol,
+            path=symbol_path,
+        )
+
+        _validate_optional_mapping_list(
+            symbol_mapping,
+            key="filters",
+            path=f"{symbol_path}.filters",
+        )
+
+        _validate_optional_string_list(
+            symbol_mapping,
+            key="marketModes",
+            path=f"{symbol_path}.marketModes",
+        )
+
+        _validate_optional_string_list(
+            symbol_mapping,
+            key="orderTypes",
+            path=f"{symbol_path}.orderTypes",
+        )
+
+    _validate_optional_mapping_list(
+        payload,
+        key="rateLimits",
+        path="$.payload.rateLimits",
+    )
+
+    _validate_optional_mapping_list(
+        payload,
+        key="exchangeFilters",
+        path="$.payload.exchangeFilters",
+    )
+
+
+def _validate_optional_mapping_list(
+    mapping: Mapping[str, object],
+    *,
+    key: str,
+    path: str,
+) -> None:
+    if key not in mapping:
+        return
+
+    items = _require_list(
+        mapping.get(key),
+        path=path,
+    )
+
+    for index, item in enumerate(items):
+        _require_mapping(
+            item,
+            path=f"{path}[{index}]",
+        )
+
+
+def _validate_optional_string_list(
+    mapping: Mapping[str, object],
+    *,
+    key: str,
+    path: str,
+) -> None:
+    if key not in mapping:
+        return
+
+    items = _require_list(
+        mapping.get(key),
+        path=path,
+    )
+
+    for index, item in enumerate(items):
+        if not isinstance(item, str):
+            raise InstrumentReferenceSchemaError(
+                f"{path}[{index}] должен быть строкой, "
+                f"получен {type(item).__name__}."
+            )
+
+
+def _require_mapping(
+    value: object,
+    *,
+    path: str,
+) -> Mapping[str, object]:
+    if not isinstance(value, dict):
+        raise InstrumentReferenceSchemaError(
+            f"{path} должен быть JSON-объектом, "
+            f"получен {type(value).__name__}."
+        )
+
+    for key in value:
+        if not isinstance(key, str):
+            raise InstrumentReferenceSchemaError(
+                f"{path} содержит нестроковый ключ "
+                f"типа {type(key).__name__}."
+            )
+
+    return value
+
+
+def _require_list(
+    value: object,
+    *,
+    path: str,
+) -> list[object]:
+    if not isinstance(value, list):
+        raise InstrumentReferenceSchemaError(
+            f"{path} должен быть JSON-массивом, "
+            f"получен {type(value).__name__}."
+        )
+
+    return value
+
+# Структурно проверенное представление ответа ticker/24hr.
+@dataclass(frozen=True, slots=True)
+class ValidatedQuoteDocument:
+    payload: Mapping[str, object]
+    is_wrapped: bool
+    status: object | None
+    correlation_id: object | None
+
+
+def validate_quote_schema(
+    document: object,
+) -> ValidatedQuoteDocument:
+    """
+    Проверить структуру ответа Dzengi ticker/24hr без проверки значений.
+
+    Поддерживаются прямой JSON-объект котировки и wrapped-формат
+    с объектом котировки в поле payload.
+    """
+
+    root = _require_quote_mapping(
+        document,
+        path="$",
+    )
+
+    is_wrapped = "payload" in root
+
+    if is_wrapped:
+        payload = _require_quote_mapping(
+            root.get("payload"),
+            path="$.payload",
+        )
+    else:
+        payload = root
+
+    _validate_quote_payload(payload)
+
+    return ValidatedQuoteDocument(
+        payload=MappingProxyType(dict(payload)),
+        is_wrapped=is_wrapped,
+        status=root.get("status") if is_wrapped else None,
+        correlation_id=(
+            root.get("correlationId")
+            if is_wrapped
+            else None
+        ),
+    )
+
+
+def _validate_quote_payload(
+    payload: Mapping[str, object],
+) -> None:
+    _require_quote_key(payload, key="symbol", path="$.payload.symbol")
+    _require_quote_key(payload, key="lastPrice", path="$.payload.lastPrice")
+    _require_quote_key(payload, key="bidPrice", path="$.payload.bidPrice")
+    _require_quote_key(payload, key="askPrice", path="$.payload.askPrice")
+    _require_quote_key(payload, key="closeTime", path="$.payload.closeTime")
+
+
+def _require_quote_key(
+    mapping: Mapping[str, object],
+    *,
+    key: str,
+    path: str,
+) -> None:
+    if key not in mapping:
+        raise QuoteSchemaError(
+            f"{path} отсутствует в документе ticker/24hr."
+        )
+
+
+def _require_quote_mapping(
+    value: object,
+    *,
+    path: str,
+) -> Mapping[str, object]:
+    if not isinstance(value, dict):
+        raise QuoteSchemaError(
+            f"{path} должен быть JSON-объектом, "
+            f"получен {type(value).__name__}."
+        )
+
+    for key in value:
+        if not isinstance(key, str):
+            raise QuoteSchemaError(
+                f"{path} содержит нестроковый ключ "
+                f"типа {type(key).__name__}."
+            )
+
+    return value
+
+
+# Структурно проверенное представление сообщения котировки Dzengi WebSocket.
+@dataclass(frozen=True, slots=True)
+class ValidatedWebSocketQuoteDocument:
+    payload: Mapping[str, object]
+    root_symbol: object | None
+
+
+def validate_dzengi_websocket_quote_schema(
+    document: object,
+) -> ValidatedWebSocketQuoteDocument:
+    """
+    Проверить структуру одного декодированного сообщения Dzengi WebSocket.
+
+    Поддерживаются сообщения без оболочки и до двух известных оболочек
+    ``payload`` / ``Payload``. Проверка не преобразует цены и не выполняет
+    предметную валидацию.
+    """
+
+    root = _require_quote_mapping(document, path="$")
+    root_symbol = root.get("symbol")
+    payload = _unwrap_websocket_quote_payload(root)
+
+    _validate_websocket_quote_payload(
+        payload,
+        root_symbol=root_symbol,
+    )
+
+    return ValidatedWebSocketQuoteDocument(
+        payload=MappingProxyType(dict(payload)),
+        root_symbol=root_symbol,
+    )
+
+
+def _unwrap_websocket_quote_payload(
+    root: Mapping[str, object],
+) -> Mapping[str, object]:
+    payload = root
+
+    for level in range(2):
+        nested: object | None = None
+        nested_path = "$.payload" if level == 0 else "$.payload.payload"
+
+        for key in ("payload", "Payload"):
+            candidate = payload.get(key)
+            if candidate is not None:
+                nested = candidate
+                break
+
+        if nested is None:
+            break
+
+        payload = _require_quote_mapping(
+            nested,
+            path=nested_path,
+        )
+
+    return payload
+
+
+def _validate_websocket_quote_payload(
+    payload: Mapping[str, object],
+    *,
+    root_symbol: object | None,
+) -> None:
+    if (
+        "symbolName" not in payload
+        and "symbol" not in payload
+        and root_symbol is None
+    ):
+        raise QuoteSchemaError(
+            "$.payload не содержит symbolName или symbol."
+        )
+
+    has_direct_bid = "bid" in payload
+    has_direct_ask = "ask" in payload or "ofr" in payload
+    has_depth_bid = "bids" in payload
+    has_depth_ask = "asks" in payload
+
+    if has_direct_bid or has_direct_ask:
+        if not has_direct_bid or not has_direct_ask:
+            raise QuoteSchemaError(
+                "WebSocket quote должна содержать полный набор bid и ask/ofr."
+            )
+        return
+
+    if has_depth_bid or has_depth_ask:
+        if not has_depth_bid or not has_depth_ask:
+            raise QuoteSchemaError(
+                "WebSocket depth quote должна содержать bids и asks."
+            )
+
+        bids = payload.get("bids")
+        asks = payload.get("asks")
+
+        if not isinstance(bids, list) or not bids:
+            raise QuoteSchemaError(
+                "$.payload.bids должен быть непустым JSON-массивом."
+            )
+
+        if not isinstance(asks, list) or not asks:
+            raise QuoteSchemaError(
+                "$.payload.asks должен быть непустым JSON-массивом."
+            )
+        return
+
+    raise QuoteSchemaError(
+        "WebSocket quote не содержит bid/ask либо bids/asks."
+    )

app/src/market_data/acquisition/validation/sequence.py

@@ -0,0 +1 @@
+# app/src/market_data/acquisition/validation/sequence.py

app/src/market_data/acquisition/validation/values.py

@@ -0,0 +1,551 @@
+# app/src/market_data/acquisition/validation/values.py
+
+from __future__ import annotations
+
+from decimal import Decimal, InvalidOperation
+
+from src.market_data.acquisition.adapters.dzengi.models import (
+    DzengiExchangeInfoResponse,
+    DzengiExchangeInfoSymbol,
+    DzengiInstrumentFilter,
+    DzengiLotSizeFilter,
+    DzengiMinNotionalFilter,
+    DzengiRateLimit,
+    DzengiRawNumeric,
+    DzengiUnknownFilter,
+    DzengiTicker24hrResponse,
+    DzengiWebSocketQuoteResponse,
+)
+from src.market_data.acquisition.exceptions import (
+    InstrumentReferenceValueError,
+    QuoteValueError,
+)
+
+
+def validate_exchange_info_values(
+    response: DzengiExchangeInfoResponse,
+) -> None:
+    """
+    Проверить допустимость значений в raw-моделях Dzengi exchangeInfo.
+
+    Функция не изменяет модели, не выполняет mapping в Instrument
+    и не повторяет schema validation или parsing.
+    """
+
+    _validate_optional_non_empty_string(
+        response.status,
+        path="$.status",
+    )
+    _validate_optional_non_empty_string(
+        response.correlation_id,
+        path="$.correlationId",
+    )
+
+    payload = response.payload
+
+    _validate_optional_non_empty_string(
+        payload.timezone,
+        path="$.payload.timezone",
+    )
+
+    for index, rate_limit in enumerate(payload.rate_limits):
+        _validate_rate_limit(
+            rate_limit,
+            path=f"$.payload.rateLimits[{index}]",
+        )
+
+    for index, exchange_filter in enumerate(payload.exchange_filters):
+        _validate_unknown_filter(
+            exchange_filter,
+            path=f"$.payload.exchangeFilters[{index}]",
+            allow_empty_filter_type=True,
+        )
+
+    for index, symbol in enumerate(payload.symbols):
+        _validate_symbol(
+            symbol,
+            path=f"$.payload.symbols[{index}]",
+        )
+
+
+def _validate_symbol(
+    symbol: DzengiExchangeInfoSymbol,
+    *,
+    path: str,
+) -> None:
+    _validate_required_non_empty_string(
+        symbol.symbol,
+        path=f"{path}.symbol",
+    )
+    _validate_required_non_empty_string(
+        symbol.name,
+        path=f"{path}.name",
+    )
+    _validate_required_non_empty_string(
+        symbol.status,
+        path=f"{path}.status",
+    )
+    _validate_required_non_empty_string(
+        symbol.base_asset,
+        path=f"{path}.baseAsset",
+    )
+    _validate_required_non_empty_string(
+        symbol.quote_asset,
+        path=f"{path}.quoteAsset",
+    )
+    _validate_required_non_empty_string(
+        symbol.market_type,
+        path=f"{path}.marketType",
+    )
+
+    _validate_optional_non_empty_string(
+        symbol.asset_type,
+        path=f"{path}.assetType",
+    )
+    _validate_optional_non_empty_string(
+        symbol.quote_asset_id,
+        path=f"{path}.quoteAssetId",
+    )
+    _validate_optional_non_empty_string(
+        symbol.trading_hours,
+        path=f"{path}.tradingHours",
+    )
+
+    # Dzengi может возвращать пустые строки для country, sector и industry.
+    # Эти значения сохраняются как часть raw-контракта и не считаются ошибкой.
+
+    _validate_non_empty_string_tuple(
+        symbol.order_types,
+        path=f"{path}.orderTypes",
+    )
+    _validate_non_empty_string_tuple(
+        symbol.market_modes,
+        path=f"{path}.marketModes",
+    )
+
+    _validate_optional_non_negative_int(
+        symbol.base_asset_precision,
+        path=f"{path}.baseAssetPrecision",
+    )
+    _validate_optional_non_negative_int(
+        symbol.quote_precision,
+        path=f"{path}.quotePrecision",
+    )
+    _validate_optional_non_negative_int(
+        symbol.swap_charge_interval,
+        path=f"{path}.swapChargeInterval",
+    )
+
+    _validate_optional_positive_number(
+        symbol.tick_size,
+        path=f"{path}.tickSize",
+    )
+
+    _validate_optional_finite_number(
+        symbol.tick_value,
+        path=f"{path}.tickValue",
+    )
+    _validate_optional_finite_number(
+        symbol.trading_fee,
+        path=f"{path}.tradingFee",
+    )
+    _validate_optional_finite_number(
+        symbol.exchange_fee,
+        path=f"{path}.exchangeFee",
+    )
+    _validate_optional_finite_number(
+        symbol.long_rate,
+        path=f"{path}.longRate",
+    )
+    _validate_optional_finite_number(
+        symbol.short_rate,
+        path=f"{path}.shortRate",
+    )
+    _validate_optional_finite_number(
+        symbol.min_sl_gap,
+        path=f"{path}.minSLGap",
+    )
+    _validate_optional_finite_number(
+        symbol.max_sl_gap,
+        path=f"{path}.maxSLGap",
+    )
+    _validate_optional_finite_number(
+        symbol.min_tp_gap,
+        path=f"{path}.minTPGap",
+    )
+    _validate_optional_finite_number(
+        symbol.max_tp_gap,
+        path=f"{path}.maxTPGap",
+    )
+
+    for index, instrument_filter in enumerate(symbol.filters):
+        _validate_instrument_filter(
+            instrument_filter,
+            path=f"{path}.filters[{index}]",
+        )
+
+
+def _validate_rate_limit(
+    rate_limit: DzengiRateLimit,
+    *,
+    path: str,
+) -> None:
+    _validate_required_non_empty_string(
+        rate_limit.interval,
+        path=f"{path}.interval",
+    )
+    _validate_required_non_empty_string(
+        rate_limit.rate_limit_type,
+        path=f"{path}.rateLimitType",
+    )
+    _validate_positive_int(
+        rate_limit.interval_num,
+        path=f"{path}.intervalNum",
+    )
+    _validate_positive_int(
+        rate_limit.limit,
+        path=f"{path}.limit",
+    )
+
+
+def _validate_instrument_filter(
+    instrument_filter: DzengiInstrumentFilter,
+    *,
+    path: str,
+) -> None:
+    _validate_required_non_empty_string(
+        instrument_filter.filter_type,
+        path=f"{path}.filterType",
+    )
+
+    if isinstance(instrument_filter, DzengiLotSizeFilter):
+        _validate_lot_size_filter(
+            instrument_filter,
+            path=path,
+        )
+        return
+
+    if isinstance(instrument_filter, DzengiMinNotionalFilter):
+        _validate_min_notional_filter(
+            instrument_filter,
+            path=path,
+        )
+        return
+
+    if isinstance(instrument_filter, DzengiUnknownFilter):
+        _validate_unknown_filter(
+            instrument_filter,
+            path=path,
+            allow_empty_filter_type=False,
+        )
+
+
+def _validate_lot_size_filter(
+    lot_size: DzengiLotSizeFilter,
+    *,
+    path: str,
+) -> None:
+    min_qty = _validate_optional_positive_raw_numeric(
+        lot_size.min_qty,
+        path=f"{path}.minQty",
+    )
+    max_qty = _validate_optional_positive_raw_numeric(
+        lot_size.max_qty,
+        path=f"{path}.maxQty",
+    )
+    _validate_optional_positive_raw_numeric(
+        lot_size.step_size,
+        path=f"{path}.stepSize",
+    )
+
+    if (
+        min_qty is not None
+        and max_qty is not None
+        and min_qty > max_qty
+    ):
+        raise InstrumentReferenceValueError(
+            f"{path}.minQty не должно превышать {path}.maxQty."
+        )
+
+
+def _validate_min_notional_filter(
+    min_notional: DzengiMinNotionalFilter,
+    *,
+    path: str,
+) -> None:
+    _validate_optional_non_negative_raw_numeric(
+        min_notional.min_notional,
+        path=f"{path}.minNotional",
+    )
+
+
+def _validate_unknown_filter(
+    unknown_filter: DzengiUnknownFilter,
+    *,
+    path: str,
+    allow_empty_filter_type: bool,
+) -> None:
+    if allow_empty_filter_type:
+        if unknown_filter.filter_type and not unknown_filter.filter_type.strip():
+            raise InstrumentReferenceValueError(
+                f"{path}.filterType не должен состоять только из пробелов."
+            )
+        return
+
+    _validate_required_non_empty_string(
+        unknown_filter.filter_type,
+        path=f"{path}.filterType",
+    )
+
+
+def _validate_required_non_empty_string(
+    value: str,
+    *,
+    path: str,
+) -> None:
+    if not value.strip():
+        raise InstrumentReferenceValueError(
+            f"{path} не должен быть пустым."
+        )
+
+
+def _validate_optional_non_empty_string(
+    value: str | None,
+    *,
+    path: str,
+) -> None:
+    if value is None:
+        return
+
+    if not value.strip():
+        raise InstrumentReferenceValueError(
+            f"{path} не должен быть пустым."
+        )
+
+
+def _validate_non_empty_string_tuple(
+    values: tuple[str, ...],
+    *,
+    path: str,
+) -> None:
+    for index, value in enumerate(values):
+        if not value.strip():
+            raise InstrumentReferenceValueError(
+                f"{path}[{index}] не должен быть пустым."
+            )
+
+
+def _validate_optional_non_negative_int(
+    value: int | None,
+    *,
+    path: str,
+) -> None:
+    if value is None:
+        return
+
+    if value < 0:
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть больше или равно нулю."
+        )
+
+
+def _validate_positive_int(
+    value: int,
+    *,
+    path: str,
+) -> None:
+    if value <= 0:
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть больше нуля."
+        )
+
+
+def _validate_optional_positive_number(
+    value: int | float | None,
+    *,
+    path: str,
+) -> None:
+    if value is None:
+        return
+
+    decimal_value = _to_finite_decimal(
+        value,
+        path=path,
+    )
+
+    if decimal_value <= 0:
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть больше нуля."
+        )
+
+
+def _validate_optional_finite_number(
+    value: int | float | None,
+    *,
+    path: str,
+) -> None:
+    if value is None:
+        return
+
+    _to_finite_decimal(
+        value,
+        path=path,
+    )
+
+
+def _validate_optional_positive_raw_numeric(
+    value: DzengiRawNumeric | None,
+    *,
+    path: str,
+) -> Decimal | None:
+    if value is None:
+        return None
+
+    decimal_value = _to_finite_decimal(
+        value,
+        path=path,
+    )
+
+    if decimal_value <= 0:
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть больше нуля."
+        )
+
+    return decimal_value
+
+
+def _validate_optional_non_negative_raw_numeric(
+    value: DzengiRawNumeric | None,
+    *,
+    path: str,
+) -> Decimal | None:
+    if value is None:
+        return None
+
+    decimal_value = _to_finite_decimal(
+        value,
+        path=path,
+    )
+
+    if decimal_value < 0:
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть больше или равно нулю."
+        )
+
+    return decimal_value
+
+
+def _to_finite_decimal(
+    value: str | int | float,
+    *,
+    path: str,
+) -> Decimal:
+    try:
+        decimal_value = Decimal(str(value))
+    except (InvalidOperation, ValueError) as exc:
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть корректным числом."
+        ) from exc
+
+    if not decimal_value.is_finite():
+        raise InstrumentReferenceValueError(
+            f"{path} должно быть конечным числом."
+        )
+
+    return decimal_value
+
+def validate_quote_values(
+    response: DzengiTicker24hrResponse,
+) -> None:
+    """
+    Проверить допустимость значений raw-модели Dzengi ticker/24hr.
+
+    Функция не изменяет модель и не выполняет mapping в Quote.
+    """
+
+    if not response.symbol.strip():
+        raise QuoteValueError(
+            "$.payload.symbol не должен быть пустым."
+        )
+
+    last_price = _quote_positive_decimal(
+        response.last_price,
+        path="$.payload.lastPrice",
+    )
+    bid_price = _quote_positive_decimal(
+        response.bid_price,
+        path="$.payload.bidPrice",
+    )
+    ask_price = _quote_positive_decimal(
+        response.ask_price,
+        path="$.payload.askPrice",
+    )
+
+    if response.close_time <= 0:
+        raise QuoteValueError(
+            "$.payload.closeTime должно быть больше нуля."
+        )
+
+    if bid_price > ask_price:
+        raise QuoteValueError(
+            "$.payload.bidPrice не должно превышать $.payload.askPrice."
+        )
+
+    # Явное чтение сохраняет проверку обязательности lastPrice
+    # как самостоятельного положительного рыночного значения.
+    del last_price
+
+
+def _quote_positive_decimal(
+    value: DzengiRawNumeric,
+    *,
+    path: str,
+) -> Decimal:
+    try:
+        decimal_value = Decimal(str(value))
+    except (InvalidOperation, ValueError) as exc:
+        raise QuoteValueError(
+            f"{path} должно быть корректным числом."
+        ) from exc
+
+    if not decimal_value.is_finite():
+        raise QuoteValueError(
+            f"{path} должно быть конечным числом."
+        )
+
+    if decimal_value <= 0:
+        raise QuoteValueError(
+            f"{path} должно быть больше нуля."
+        )
+
+    return decimal_value
+
+
+def validate_dzengi_websocket_quote_values(
+    response: DzengiWebSocketQuoteResponse,
+) -> None:
+    """Проверить значения raw-модели котировки Dzengi WebSocket."""
+
+    if not response.symbol.strip():
+        raise QuoteValueError(
+            "$.payload.symbol не должен быть пустым."
+        )
+
+    bid_price = _quote_positive_decimal(
+        response.bid_price,
+        path="$.payload.bidPrice",
+    )
+    ask_price = _quote_positive_decimal(
+        response.ask_price,
+        path="$.payload.askPrice",
+    )
+
+    if bid_price > ask_price:
+        raise QuoteValueError(
+            "$.payload.bidPrice не должно превышать $.payload.askPrice."
+        )
+
+    if response.timestamp is not None and response.timestamp <= 0:
+        raise QuoteValueError(
+            "$.payload.timestamp должно быть больше нуля."
+        )

app/src/storage/exceptions.py

@@ -0,0 +1,18 @@
+# app/src/storage/exceptions.py
+
+from __future__ import annotations
+
+
+# Базовая ошибка storage-слоя.
+class StorageError(Exception):
+    """Base storage layer error."""
+
+
+# Ошибка хранилища справочника инструментов.
+class InstrumentStoreError(StorageError):
+    """Instrument store contract or operation error."""
+
+
+# Ошибка хранилища канонических котировок.
+class QuoteStoreError(StorageError):
+    """Quote store contract or operation error."""

app/src/storage/instrument_store.py

@@ -0,0 +1,110 @@
+# app/src/storage/instrument_store.py
+
+from __future__ import annotations
+
+from typing import Protocol, runtime_checkable
+
+from src.market_data.acquisition.models.instrument import Instrument
+from src.storage.exceptions import InstrumentStoreError
+
+
+# Контракт runtime-хранилища канонического справочника инструментов.
+@runtime_checkable
+class InstrumentStoreProtocol(Protocol):
+    def get(
+        self,
+        source_name: str,
+    ) -> tuple[Instrument, ...] | None:
+        """
+        Вернуть сохранённый набор инструментов для источника.
+
+        None означает cache miss: данные для источника ещё не сохранялись.
+        Пустой tuple означает успешное сохранение пустого справочника.
+        """
+
+    def set(
+        self,
+        source_name: str,
+        instruments: tuple[Instrument, ...],
+    ) -> None:
+        """Сохранить полный immutable-набор инструментов источника."""
+
+    def clear(
+        self,
+        source_name: str | None = None,
+    ) -> None:
+        """
+        Очистить данные одного источника или всё хранилище.
+
+        source_name=None очищает все сохранённые источники.
+        """
+
+
+# In-memory реализация runtime-хранилища справочника инструментов.
+class InMemoryInstrumentStore:
+    def __init__(self) -> None:
+        self._items: dict[str, tuple[Instrument, ...]] = {}
+
+    def get(
+        self,
+        source_name: str,
+    ) -> tuple[Instrument, ...] | None:
+        normalized_source_name = self._normalize_source_name(
+            source_name
+        )
+
+        return self._items.get(normalized_source_name)
+
+    def set(
+        self,
+        source_name: str,
+        instruments: tuple[Instrument, ...],
+    ) -> None:
+        normalized_source_name = self._normalize_source_name(
+            source_name
+        )
+
+        if not isinstance(instruments, tuple):
+            raise InstrumentStoreError(
+                "Справочник инструментов должен быть передан как tuple."
+            )
+
+        if not all(
+            isinstance(instrument, Instrument)
+            for instrument in instruments
+        ):
+            raise InstrumentStoreError(
+                "Справочник содержит объект, не являющийся Instrument."
+            )
+
+        self._items[normalized_source_name] = instruments
+
+    def clear(
+        self,
+        source_name: str | None = None,
+    ) -> None:
+        if source_name is None:
+            self._items.clear()
+            return
+
+        normalized_source_name = self._normalize_source_name(
+            source_name
+        )
+
+        self._items.pop(
+            normalized_source_name,
+            None,
+        )
+
+    def _normalize_source_name(
+        self,
+        source_name: str,
+    ) -> str:
+        normalized_source_name = str(source_name or "").strip()
+
+        if not normalized_source_name:
+            raise InstrumentStoreError(
+                "Имя источника Instrument Store не должно быть пустым."
+            )
+
+        return normalized_source_name

app/src/storage/quote_store.py

@@ -0,0 +1,215 @@
+# app/src/storage/quote_store.py
+
+from __future__ import annotations
+
+from typing import Protocol, runtime_checkable
+
+from src.market_data.acquisition.models.quote import Quote
+from src.storage.exceptions import QuoteStoreError
+
+
+# Контракт runtime-хранилища канонических котировок.
+@runtime_checkable
+class QuoteStoreProtocol(Protocol):
+    def get(
+        self,
+        source_name: str,
+        symbol: str,
+        *,
+        runtime_key: str = "default",
+    ) -> Quote | None:
+        """Вернуть котировку или None, если запись отсутствует."""
+
+    def set(
+        self,
+        source_name: str,
+        quote: Quote,
+        *,
+        runtime_key: str = "default",
+    ) -> None:
+        """Сохранить каноническую котировку без копирования модели."""
+
+    def clear(
+        self,
+        source_name: str | None = None,
+        symbol: str | None = None,
+        *,
+        runtime_key: str | None = None,
+    ) -> None:
+        """Удалить записи, соответствующие переданным фильтрам."""
+
+
+# In-memory реализация runtime-хранилища канонических котировок.
+class InMemoryQuoteStore:
+    def __init__(self) -> None:
+        self._items: dict[tuple[str, str, str], Quote] = {}
+
+    def get(
+        self,
+        source_name: str,
+        symbol: str,
+        *,
+        runtime_key: str = "default",
+    ) -> Quote | None:
+        return self._items.get(
+            self._key(
+                source_name=source_name,
+                symbol=symbol,
+                runtime_key=runtime_key,
+            )
+        )
+
+    def set(
+        self,
+        source_name: str,
+        quote: Quote,
+        *,
+        runtime_key: str = "default",
+    ) -> None:
+        normalized_source_name = self._normalize_source_name(
+            source_name
+        )
+        normalized_runtime_key = self._normalize_runtime_key(
+            runtime_key
+        )
+
+        if not isinstance(quote, Quote):
+            raise QuoteStoreError(
+                "Quote Store принимает только объект Quote."
+            )
+
+        normalized_symbol = self._normalize_symbol(
+            quote.symbol
+        )
+
+        self._items[
+            (
+                normalized_source_name,
+                normalized_runtime_key,
+                normalized_symbol,
+            )
+        ] = quote
+
+    def clear(
+        self,
+        source_name: str | None = None,
+        symbol: str | None = None,
+        *,
+        runtime_key: str | None = None,
+    ) -> None:
+        if (
+            source_name is None
+            and symbol is None
+            and runtime_key is None
+        ):
+            self._items.clear()
+            return
+
+        normalized_source_name = (
+            self._normalize_source_name(source_name)
+            if source_name is not None
+            else None
+        )
+        normalized_symbol = (
+            self._normalize_symbol(symbol)
+            if symbol is not None
+            else None
+        )
+        normalized_runtime_key = (
+            self._normalize_runtime_key(runtime_key)
+            if runtime_key is not None
+            else None
+        )
+
+        keys_to_delete = [
+            key
+            for key in self._items
+            if self._matches_filters(
+                key,
+                source_name=normalized_source_name,
+                symbol=normalized_symbol,
+                runtime_key=normalized_runtime_key,
+            )
+        ]
+
+        for key in keys_to_delete:
+            self._items.pop(key, None)
+
+    def _key(
+        self,
+        *,
+        source_name: str,
+        symbol: str,
+        runtime_key: str,
+    ) -> tuple[str, str, str]:
+        return (
+            self._normalize_source_name(source_name),
+            self._normalize_runtime_key(runtime_key),
+            self._normalize_symbol(symbol),
+        )
+
+    def _matches_filters(
+        self,
+        key: tuple[str, str, str],
+        *,
+        source_name: str | None,
+        symbol: str | None,
+        runtime_key: str | None,
+    ) -> bool:
+        key_source_name, key_runtime_key, key_symbol = key
+
+        if (
+            source_name is not None
+            and key_source_name != source_name
+        ):
+            return False
+
+        if (
+            runtime_key is not None
+            and key_runtime_key != runtime_key
+        ):
+            return False
+
+        if symbol is not None and key_symbol != symbol:
+            return False
+
+        return True
+
+    def _normalize_source_name(
+        self,
+        source_name: str,
+    ) -> str:
+        normalized_source_name = str(source_name or "").strip()
+
+        if not normalized_source_name:
+            raise QuoteStoreError(
+                "Имя источника Quote Store не должно быть пустым."
+            )
+
+        return normalized_source_name
+
+    def _normalize_runtime_key(
+        self,
+        runtime_key: str,
+    ) -> str:
+        normalized_runtime_key = str(runtime_key or "").strip().lower()
+
+        if not normalized_runtime_key:
+            raise QuoteStoreError(
+                "Runtime key Quote Store не должен быть пустым."
+            )
+
+        return normalized_runtime_key
+
+    def _normalize_symbol(
+        self,
+        symbol: str,
+    ) -> str:
+        normalized_symbol = str(symbol or "").strip().upper()
+
+        if not normalized_symbol:
+            raise QuoteStoreError(
+                "Символ Quote Store не должен быть пустым."
+            )
+
+        return normalized_symbol

app/src/storage/repositories/balance_snapshots.py

@@ -1,3 +1,5 @@
+# app/src/storage/repositories/balance_snapshots.py
+
 from __future__ import annotations
 
 import json
@@ -57,4 +59,4 @@ class BalanceSnapshotRepository:
                 }
             )
 
-        return items
+        return items

app/src/storage/session.py

@@ -41,4 +41,4 @@ def check_database_health() -> tuple[bool, str]:
     except Exception as exc:
         return False, f"PostgreSQL error: {exc}"
 
-    return True, version
+    return True, version

app/src/telegram/handlers/__init__.py

@@ -1 +1,3 @@
-"""Package marker."""
+# app/src/telegram/handlers/__init__.py
+ 
+"""Package marker."""

app/src/telegram/handlers/auto/ui.py

@@ -10,6 +10,7 @@ from aiogram.types import InlineKeyboardMarkup
 from aiogram.utils.keyboard import InlineKeyboardBuilder
 
 from src.integrations.exchange.service import ExchangeService
+from src.market_data.acquisition.models.quote import Quote
 from src.integrations.exchange.runtime_ui import build_runtime_exchange_alert_lines
 from src.telegram.ui.common import mode_line
 from src.trading.auto.service import AutoTradeService
@@ -40,10 +41,10 @@ def build_auto_notification_text() -> str:
 
 
 def _build_signal_notification_text(state, signal: str) -> str:
-    snapshot = _market_snapshot(getattr(state, "symbol", None))
+    quote = _market_quote(getattr(state, "symbol", None))
 
-    bid_price = _price_from_snapshot(snapshot, "bid_price")
-    ask_price = _price_from_snapshot(snapshot, "ask_price")
+    bid_price = _price_from_quote(quote, "bid_price")
+    ask_price = _price_from_quote(quote, "ask_price")
 
     side = "Long" if signal == "BUY" else "Short"
     side_icon = _signal_icon(signal)
@@ -85,28 +86,28 @@ def _build_signal_notification_text(state, signal: str) -> str:
     return "\n".join(lines)
 
 
-def _price_from_snapshot(
-    snapshot: dict[str, object] | None,
+def _price_from_quote(
+    quote: Quote | None,
     key: str,
 ) -> float | None:
-    if snapshot is None:
+    if quote is None:
         return None
 
-    return safe_float(snapshot.get(key))
+    return safe_float(getattr(quote, key, None))
 
 
 def _position_current_price(state) -> float | None:
-    snapshot = _market_snapshot(getattr(state, "symbol", None))
+    quote = _market_quote(getattr(state, "symbol", None))
 
-    if snapshot is not None:
+    if quote is not None:
         side = str(getattr(state, "position_side", "") or "").upper()
 
         if side == "LONG":
-            price = snapshot.get("bid_price") or snapshot.get("last_price")
+            price = quote.bid_price or quote.last_price
         elif side == "SHORT":
-            price = snapshot.get("ask_price") or snapshot.get("last_price")
+            price = quote.ask_price or quote.last_price
         else:
-            price = snapshot.get("last_price")
+            price = quote.last_price
 
         parsed = safe_float(price)
         if parsed is not None:
@@ -720,12 +721,15 @@ def _max_reserved_line(state, price: float | None = None) -> str:
     return f"Маржа · {_format_usd_compact(own_funds_usd)}"
 
 
-def _market_snapshot(symbol: str | None) -> dict[str, object] | None:
+def _market_quote(symbol: str | None) -> Quote | None:
     if not symbol:
         return None
 
     try:
-        return ExchangeService().get_market_snapshot(symbol, runtime_key="auto")
+        return ExchangeService().get_quote(
+            symbol,
+            runtime_key="auto",
+        )
     except Exception:
         return None
     
@@ -907,10 +911,10 @@ def _commission_lines_for_position(
 
 
 def _current_price(symbol: str | None) -> float | None:
-    snapshot = _market_snapshot(symbol)
+    quote = _market_quote(symbol)
 
-    if snapshot is not None:
-        price = snapshot.get("last_price")
+    if quote is not None:
+        price = quote.last_price
         if price is not None:
             try:
                 parsed = safe_float(price)
@@ -922,25 +926,25 @@ def _current_price(symbol: str | None) -> float | None:
         return None
 
     try:
-        return float(ExchangeService().get_price(symbol).price)
+        return float(ExchangeService().get_quote(symbol).last_price)
     except Exception:
         return None
 
 
 def _signal_entry_price(state) -> float | None:
-    snapshot = _market_snapshot(state.symbol)
+    quote = _market_quote(state.symbol)
 
-    if snapshot is None:
+    if quote is None:
         return _current_price(state.symbol)
 
     signal = (state.last_signal or "HOLD").upper()
 
     if signal == "BUY":
-        price = snapshot.get("ask_price")
+        price = quote.ask_price
     elif signal == "SELL":
-        price = snapshot.get("bid_price")
+        price = quote.bid_price
     else:
-        price = snapshot.get("last_price")
+        price = quote.last_price
 
     if price is None:
         return None

app/src/telegram/handlers/debug_auto/ui.py

@@ -3,10 +3,15 @@
 from __future__ import annotations
 
 import time
+from datetime import datetime, timezone
+from decimal import Decimal
+from zoneinfo import ZoneInfo
 
 from aiogram.types import InlineKeyboardMarkup
 from aiogram.utils.keyboard import InlineKeyboardBuilder
 
+from src.core.config import load_settings
+from src.core.types import NumericLike
 from src.integrations.exchange.service import ExchangeService
 from src.trading.debug.service import DebugTradeService
 
@@ -113,6 +118,23 @@ def _format_updated_at(value: object) -> str:
     if not value:
         return "—"
 
+    if isinstance(value, datetime):
+        current = value
+
+        if current.tzinfo is None:
+            current = current.replace(tzinfo=timezone.utc)
+
+        try:
+            settings = load_settings()
+
+            current = current.astimezone(
+                ZoneInfo(settings.tz),
+            )
+        except Exception:
+            current = current.astimezone()
+
+        return current.strftime("%H:%M:%S")
+
     text = str(value)
 
     if " " in text:
@@ -121,6 +143,23 @@ def _format_updated_at(value: object) -> str:
     return text
 
 
+def _quote_age_seconds(quote: object) -> float | None:
+    received_at = getattr(quote, "received_at", None)
+    if not isinstance(received_at, datetime):
+        return None
+
+    if received_at.tzinfo is None:
+        received_at = received_at.replace(tzinfo=timezone.utc)
+
+    return max(
+        0.0,
+        (
+            datetime.now(timezone.utc)
+            - received_at.astimezone(timezone.utc)
+        ).total_seconds(),
+    )
+
+
 def _market_snapshot_lines(symbol: str | None) -> list[str]:
     if not symbol:
         return [
@@ -141,7 +180,7 @@ def _market_snapshot_lines(symbol: str | None) -> list[str]:
     error = None
 
     try:
-        market = ExchangeService().get_market_snapshot(
+        market = ExchangeService().get_quote(
             symbol,
             runtime_key="debug_auto",
         )
@@ -167,11 +206,11 @@ def _market_snapshot_lines(symbol: str | None) -> list[str]:
             f"Error · {error or 'unknown'}",
         ]
 
-    last_price = market.get("last_price") if market else getattr(execution, "last_price", None)
-    bid_price = market.get("bid_price") if market else getattr(execution, "bid_price", None)
-    ask_price = market.get("ask_price") if market else getattr(execution, "ask_price", None)
-    market_source = market.get("source") if market else "—"
-    market_age = market.get("age_seconds") if market else None
+    last_price = market.last_price if market else getattr(execution, "last_price", None)
+    bid_price = market.bid_price if market else getattr(execution, "bid_price", None)
+    ask_price = market.ask_price if market else getattr(execution, "ask_price", None)
+    market_source = market.source if market else "—"
+    market_age = _quote_age_seconds(market) if market else None
 
     execution_source = getattr(execution, "source", "—") if execution else "—"
     execution_age = getattr(execution, "age_seconds", None) if execution else None
@@ -184,7 +223,7 @@ def _market_snapshot_lines(symbol: str | None) -> list[str]:
         f"Ask · {_format_usd_or_dash(ask_price)}",
         f"Source · {market_source or '—'}",
         f"Quote age · {_format_age(market_age)}",
-        f"Exchange time · {_format_updated_at(market.get('updated_at') if market else None)}",
+        f"Exchange time · {_format_updated_at(market.exchange_timestamp if market else None)}",
         "",
         "<b>Execution</b>",
         f"Source · {execution_source or '—'}",
@@ -274,7 +313,9 @@ def _format_crypto_size(value: float | int | None) -> str:
     return f"{float(value):.5f}".rstrip("0").rstrip(".")
 
 
-def _format_money_compact(value: float | int | None) -> str:
+def _format_money_compact(
+    value: float | int | Decimal | None,
+) -> str:
     if value is None:
         return "—"
 
@@ -286,21 +327,25 @@ def _format_money_compact(value: float | int | None) -> str:
     return f"{number:,.2f}".replace(",", " ").rstrip("0").rstrip(".")
 
 
-def _format_usd_or_dash(value: float | int | None) -> str:
+def _format_usd_or_dash(
+    value: float | int | Decimal | None,
+) -> str:
     if value is None:
         return "—"
 
     return f"$ {_format_money_compact(value)}"
 
 
-def _format_usd_or_off(value: float | int | None) -> str:
+def _format_usd_or_off(
+    value: float | int | Decimal | None,
+) -> str:
     if value is None:
-        return "off"
+        return "Выкл."
 
     return f"$ {_format_money_compact(value)}"
 
 
-def _format_signed_usd(value: float | int | None) -> str:
+def _format_signed_usd(value: float | int | Decimal | None) -> str:
     if value is None:
         return "—"
 
@@ -315,7 +360,7 @@ def _format_signed_usd(value: float | int | None) -> str:
     return "$ 0"
 
 
-def _format_age(value: object) -> str:
+def _format_age(value: NumericLike | None) -> str:
     if value is None:
         return "—"
 

app/src/telegram/handlers/market.py

@@ -1,505 +0,0 @@
-# app/src/telegram/handlers/market.py
-
-from __future__ import annotations
-
-from aiogram import F, Router
-from aiogram.fsm.context import FSMContext
-from aiogram.types import (
-    CallbackQuery,
-    InaccessibleMessage,
-    InlineKeyboardMarkup,
-    Message,
-)
-from aiogram.utils.keyboard import InlineKeyboardBuilder
-
-from src.core.numbers import safe_float
-from src.core.types import NumericLike
-from src.integrations.exchange.exceptions import ExchangeError
-from src.integrations.exchange.service import ExchangeService
-from src.integrations.exchange.status import (
-    ExchangeRuntimeStatus,
-    ExchangeStatusCode,
-    build_exchange_error_status,
-    classify_exchange_error,
-)
-from src.telegram.live.active_screen import ActiveScreenManager
-from src.telegram.live.runner import LiveScreen, LiveScreenRunner, ScreenRegistry
-from src.telegram.ui.common import mode_line, now_line
-from src.telegram.ui.currency_ui import format_usd_amount
-from src.telegram.ui.exchange_error import (
-    show_callback_exchange_error,
-    show_message_exchange_error,
-)
-from src.trading.journal.service import JournalService
-
-
-router = Router(name="market")
-
-_last_market_prices: dict[str, float] = {}
-_last_market_directions: dict[str, str] = {}
-
-
-def _require_message(callback: CallbackQuery) -> Message | None:
-    message = callback.message
-
-    if message is None or isinstance(message, InaccessibleMessage):
-        return None
-
-    return message
-
-
-def _market_keyboard() -> InlineKeyboardMarkup:
-    builder = InlineKeyboardBuilder()
-    builder.button(text="📊 К мониторингу", callback_data="monitoring:home")
-    builder.adjust(1)
-    return builder.as_markup()
-
-
-# собрать текст, когда рынок/биржа недоступны через unified status layer
-def _build_market_status_text(status: ExchangeRuntimeStatus) -> str:
-    icon = "⏸️" if status.code == ExchangeStatusCode.BREAK else "⛔️"
-
-    return (
-        "<b>📈 Рынок</b>\n"
-        f"{mode_line()}"
-        f"{icon} {status.title}\n\n"
-        f"{status.message}\n\n"
-        f"{now_line()}"
-    )
-
-
-def _build_market_text(
-    *,
-    ticker_price: NumericLike,
-    name: str,
-    market_type: str,
-    base_asset: str,
-    quote_asset: str,
-) -> str:
-    price = safe_float(ticker_price)
-
-    if price is None:
-        price = 0.0
-
-    previous_price = _last_market_prices.get(name)
-    price_direction = _last_market_directions.get(name, "▲")
-
-    if previous_price is not None:
-        if price > previous_price:
-            price_direction = "🔺"
-        elif price < previous_price:
-            price_direction = "🔻"
-
-    _last_market_prices[name] = price
-    _last_market_directions[name] = price_direction
-
-    type_map = {
-        "LEVERAGE": "leverage",
-        "SPOT": "spot",
-    }
-    market_type_ru = type_map.get(market_type.upper(), market_type.lower())
-
-    return (
-        "<b>📈 Рынок</b>\n"
-        f"{mode_line()}"
-        "\n"
-        f"<b>{base_asset} / {quote_asset}</b> ({market_type_ru})\n\n"
-        f"<b>$ {format_usd_amount(price)}</b> {price_direction}\n\n"
-        f"{now_line()}"
-    )
-
-
-# live-render должен сам уметь показать ошибку, иначе runner просто потеряет экран
-def _build_market_live_text() -> str:
-    service = ExchangeService()
-    requested_symbol = service.settings.default_symbol
-
-    try:
-        runtime_status = service.get_symbol_runtime_status(requested_symbol)
-    except Exception as exc:
-        return _build_market_status_text(build_exchange_error_status(exc))
-
-    if runtime_status.code != ExchangeStatusCode.OPEN:
-        return _build_market_status_text(runtime_status)
-
-    symbol = runtime_status.symbol or requested_symbol
-
-    validation = service.validate_symbol(symbol)
-
-    if not validation.is_valid:
-        return _build_market_status_text(
-            service.get_symbol_runtime_status(requested_symbol)
-        )
-
-    ticker = service.get_price(validation.normalized_symbol)
-
-    symbol_info = validation.symbol_info
-    market_type = symbol_info.market_type if symbol_info else "n/a"
-    base_asset = (
-        symbol_info.base_asset
-        if symbol_info and symbol_info.base_asset
-        else "n/a"
-    )
-    quote_asset = (
-        symbol_info.quote_asset
-        if symbol_info and symbol_info.quote_asset
-        else "n/a"
-    )
-    name = (
-        symbol_info.name
-        if symbol_info and symbol_info.name
-        else ticker.symbol
-    )
-
-    return _build_market_text(
-        ticker_price=ticker.price,
-        name=name,
-        market_type=market_type,
-        base_asset=base_asset,
-        quote_asset=quote_asset,
-    )
-
-
-def _register_market_live_screen(message: Message) -> None:
-    bot = message.bot
-
-    if bot is None:
-        return
-
-    LiveScreenRunner.unregister_message(
-        chat_id=message.chat.id,
-        message_id=message.message_id,
-    )
-
-    ScreenRegistry.unregister_message(
-        chat_id=message.chat.id,
-        message_id=message.message_id,
-    )
-
-    LiveScreenRunner.register_screen(
-        LiveScreen(
-            screen="market",
-            bot=bot,
-            chat_id=message.chat.id,
-            message_id=message.message_id,
-            render_text=_build_market_live_text,
-            render_markup=_market_keyboard,
-            interval_seconds=5,
-        )
-    )
-
-    LiveScreenRunner.start("market")
-
-
-async def _prepare_market_from_message(message: Message) -> bool:
-    bot = message.bot
-
-    if bot is None:
-        return False
-
-    await ActiveScreenManager.prepare_new_screen(
-        screen="market",
-        bot=bot,
-        chat_id=message.chat.id,
-    )
-
-    return True
-
-
-async def _prepare_market_from_callback(callback: CallbackQuery) -> bool:
-    message = _require_message(callback)
-
-    if message is None:
-        await callback.answer("Сообщение недоступно", show_alert=True)
-        return False
-
-    bot = message.bot
-
-    if bot is None:
-        await callback.answer("Bot недоступен", show_alert=True)
-        return False
-
-    await ActiveScreenManager.prepare_new_screen(
-        screen="market",
-        bot=bot,
-        chat_id=message.chat.id,
-        keep_message_id=message.message_id,
-    )
-
-    return True
-
-
-async def _send_or_edit_market_screen(
-    target_message: Message,
-    *,
-    text: str,
-    edit_mode: bool,
-) -> None:
-    if edit_mode:
-        await target_message.edit_text(text, reply_markup=_market_keyboard())
-        _register_market_live_screen(target_message)
-        ActiveScreenManager.register(screen="market", message=target_message)
-        return
-
-    sent_message = await target_message.answer(
-        text,
-        reply_markup=_market_keyboard(),
-    )
-    _register_market_live_screen(sent_message)
-    ActiveScreenManager.register(screen="market", message=sent_message)
-
-
-async def _render_market_screen(
-    target_message: Message,
-    *,
-    user_id: int | None,
-    chat_id: int | None,
-    edit_mode: bool,
-    action: str,
-) -> None:
-    service = ExchangeService()
-    journal = JournalService()
-    requested_symbol = service.settings.default_symbol
-
-    journal.log_ui_info(
-        event_type="market_open_requested",
-        message="Запрошено открытие экрана рынка.",
-        screen="market",
-        action=action,
-        user_id=user_id,
-        chat_id=chat_id,
-        payload={"symbol": requested_symbol},
-    )
-
-    runtime_status = service.get_symbol_runtime_status(requested_symbol)
-
-    if runtime_status.code != ExchangeStatusCode.OPEN:
-        journal.log_ui_warning(
-            event_type="market_status_blocked",
-            message=runtime_status.message,
-            screen="market",
-            action=action,
-            user_id=user_id,
-            chat_id=chat_id,
-            payload=runtime_status.as_dict(),
-        )
-
-        await _send_or_edit_market_screen(
-            target_message,
-            text=_build_market_status_text(runtime_status),
-            edit_mode=edit_mode,
-        )
-        return
-
-    symbol = runtime_status.symbol or requested_symbol
-    validation = service.validate_symbol(symbol)
-
-    if not validation.is_valid:
-        invalid_status = service.get_symbol_runtime_status(requested_symbol)
-
-        journal.log_ui_warning(
-            event_type="market_symbol_invalid",
-            message=invalid_status.message,
-            screen="market",
-            action=action,
-            user_id=user_id,
-            chat_id=chat_id,
-            payload=invalid_status.as_dict(),
-        )
-
-        await _send_or_edit_market_screen(
-            target_message,
-            text=_build_market_status_text(invalid_status),
-            edit_mode=edit_mode,
-        )
-        return
-
-    ticker = service.get_price(validation.normalized_symbol)
-
-    symbol_info = validation.symbol_info
-    market_type = symbol_info.market_type if symbol_info else "n/a"
-    base_asset = (
-        symbol_info.base_asset
-        if symbol_info and symbol_info.base_asset
-        else "n/a"
-    )
-    quote_asset = (
-        symbol_info.quote_asset
-        if symbol_info and symbol_info.quote_asset
-        else "n/a"
-    )
-    name = (
-        symbol_info.name
-        if symbol_info and symbol_info.name
-        else ticker.symbol
-    )
-
-    text = _build_market_text(
-        ticker_price=ticker.price,
-        name=name,
-        market_type=market_type,
-        base_asset=base_asset,
-        quote_asset=quote_asset,
-    )
-
-    journal.log_ui_info(
-        event_type="market_open_success",
-        message="Экран рынка загружен.",
-        screen="market",
-        action=action,
-        user_id=user_id,
-        chat_id=chat_id,
-        payload={
-            "symbol": ticker.symbol,
-            "price": safe_float(ticker.price),
-            "runtime_status": runtime_status.as_dict(),
-        },
-    )
-
-    await _send_or_edit_market_screen(
-        target_message,
-        text=text,
-        edit_mode=edit_mode,
-    )
-
-
-@router.message(F.text == "📈 Рынок")
-async def open_market(message: Message, state: FSMContext) -> None:
-    await state.clear()
-
-    if not await _prepare_market_from_message(message):
-        return
-
-    user_id = message.from_user.id if message.from_user else None
-    chat_id = message.chat.id if message.chat else None
-
-    try:
-        await _render_market_screen(
-            message,
-            user_id=user_id,
-            chat_id=chat_id,
-            edit_mode=False,
-            action="open",
-        )
-    except ExchangeError as exc:
-        JournalService().log_ui_error(
-            event_type="market_open_error",
-            message="Не удалось загрузить экран рынка.",
-            screen="market",
-            action="open",
-            user_id=user_id,
-            chat_id=chat_id,
-            error_type=classify_exchange_error(exc),
-            raw_error=str(exc),
-        )
-
-        await show_message_exchange_error(
-            message,
-            title="<b>📈 Рынок</b>",
-            exc=exc,
-            network_details="Рыночные данные недоступны.\nОбнови экран.",
-            auth_details="Не удалось получить рыночные данные.\nПроверь API ключи.",
-            retry_callback_data="market:retry",
-        )
-
-
-@router.callback_query(F.data == "monitoring:market")
-async def open_market_from_monitoring(
-    callback: CallbackQuery,
-    state: FSMContext,
-) -> None:
-    await state.clear()
-
-    if not await _prepare_market_from_callback(callback):
-        return
-
-    message = _require_message(callback)
-
-    if message is None:
-        await callback.answer("Сообщение недоступно", show_alert=True)
-        return
-
-    user_id = callback.from_user.id if callback.from_user else None
-    chat_id = message.chat.id
-
-    try:
-        await _render_market_screen(
-            message,
-            user_id=user_id,
-            chat_id=chat_id,
-            edit_mode=True,
-            action="open_from_monitoring",
-        )
-        await callback.answer()
-
-    except ExchangeError as exc:
-        JournalService().log_ui_error(
-            event_type="market_open_error",
-            message="Не удалось загрузить экран рынка из мониторинга.",
-            screen="market",
-            action="open_from_monitoring",
-            user_id=user_id,
-            chat_id=chat_id,
-            error_type=classify_exchange_error(exc),
-            raw_error=str(exc),
-        )
-
-        await show_callback_exchange_error(
-            callback,
-            title="<b>📈 Рынок</b>",
-            exc=exc,
-            network_details="Рыночные данные недоступны.\nОбнови экран.",
-            auth_details="Не удалось получить рыночные данные.\nПроверь API ключи.",
-            retry_callback_data="market:retry",
-        )
-
-
-@router.callback_query(F.data == "market:retry")
-async def retry_market(
-    callback: CallbackQuery,
-    state: FSMContext,
-) -> None:
-    await state.clear()
-
-    if not await _prepare_market_from_callback(callback):
-        return
-
-    message = _require_message(callback)
-
-    if message is None:
-        await callback.answer("Сообщение недоступно", show_alert=True)
-        return
-
-    user_id = callback.from_user.id if callback.from_user else None
-    chat_id = message.chat.id
-
-    try:
-        await _render_market_screen(
-            message,
-            user_id=user_id,
-            chat_id=chat_id,
-            edit_mode=True,
-            action="retry",
-        )
-        await callback.answer()
-
-    except ExchangeError as exc:
-        JournalService().log_ui_error(
-            event_type="market_retry_error",
-            message="Не удалось обновить экран рынка.",
-            screen="market",
-            action="retry",
-            user_id=user_id,
-            chat_id=chat_id,
-            error_type=classify_exchange_error(exc),
-            raw_error=str(exc),
-        )
-
-        await show_callback_exchange_error(
-            callback,
-            title="<b>📈 Рынок</b>",
-            exc=exc,
-            network_details="Рыночные данные недоступны.\nОбнови экран.",
-            auth_details="Не удалось получить рыночные данные.\nПроверь API ключи.",
-            retry_callback_data="market:retry",
-        )

app/src/telegram/ui/currency_ui.py

@@ -3,8 +3,9 @@
 from __future__ import annotations
 
 from src.integrations.exchange.exceptions import ExchangeError
-from src.integrations.exchange.models import BalanceSummary, ExchangeSymbol
+from src.integrations.exchange.models import BalanceSummary
 from src.integrations.exchange.service import ExchangeService
+from src.market_data.acquisition.models.instrument import Instrument
 
 
 FIAT_CURRENCIES = {"USD", "USDT", "EUR", "RUB", "BYN"}
@@ -31,7 +32,10 @@ def is_fiat_currency(currency: str) -> bool:
 
 
 def get_currency_icon(currency: str) -> str:
-    return CURRENCY_ICONS.get(currency.upper(), currency.upper())
+    return CURRENCY_ICONS.get(
+        currency.upper(),
+        currency.upper(),
+    )
 
 
 def get_currency_label(currency: str) -> str:
@@ -45,6 +49,7 @@ def render_currency_title(currency: str) -> str:
 def format_amount(currency: str, value: float) -> str:
     if is_fiat_currency(currency):
         return f"{value:,.2f}".replace(",", " ")
+
     return f"{value:,.8f}".replace(",", " ")
 
 
@@ -52,7 +57,9 @@ def format_usd_amount(value: float) -> str:
     return f"{value:,.2f}".replace(",", " ")
 
 
-def format_usd_price(value: float | int | str | None) -> str:
+def format_usd_price(
+    value: float | int | str | None,
+) -> str:
     if value is None:
         return "—"
 
@@ -62,7 +69,9 @@ def format_usd_price(value: float | int | str | None) -> str:
         return "—"
 
 
-def format_usd_pnl(value: float | int | str | None) -> str:
+def format_usd_pnl(
+    value: float | int | str | None,
+) -> str:
     if value is None:
         return "—"
 
@@ -87,7 +96,10 @@ def render_currency_line(
     show_code: bool = True,
 ) -> str:
     icon = get_currency_icon(currency)
-    amount = format_amount(currency, value)
+    amount = format_amount(
+        currency,
+        value,
+    )
 
     if show_code:
         return f"{icon} {currency.upper()} · {amount}"
@@ -100,61 +112,79 @@ def balance_total(item: BalanceSummary) -> float:
 
 
 def is_zero_balance(item: BalanceSummary) -> bool:
-    return abs(item.available) < 1e-12 and abs(item.locked) < 1e-12
+    return (
+        abs(item.available) < 1e-12
+        and abs(item.locked) < 1e-12
+    )
 
 
 def _quote_priority(quote_asset: str) -> int:
     value = (quote_asset or "").upper()
+
     if value == "USD":
         return 3
+
     if value == "USDT":
         return 2
+
     return 0
 
 
 def _status_priority(status: str) -> int:
     value = (status or "").upper()
+
     if value == "TRADING":
         return 2
+
     if value in {"HALT", "BREAK"}:
         return 0
+
     return 1
 
 
 def _market_type_priority(market_type: str) -> int:
     value = (market_type or "").upper()
+
     if value == "SPOT":
         return 3
+
     if value == "LEVERAGE":
         return 2
+
     return 1
 
 
-def _symbol_priority(symbol_info: ExchangeSymbol) -> tuple[int, int, int, str]:
+def _instrument_priority(
+    instrument: Instrument,
+) -> tuple[int, int, int, str]:
     return (
-        _quote_priority(symbol_info.quote_asset),
-        _status_priority(symbol_info.status),
-        _market_type_priority(symbol_info.market_type),
-        symbol_info.symbol.upper(),
+        _quote_priority(instrument.quote_asset),
+        _status_priority(instrument.status),
+        _market_type_priority(instrument.market_type),
+        instrument.symbol.upper(),
     )
 
 
-def _resolve_asset_quote_symbol(
+def _resolve_asset_quote_instrument(
     exchange_service: ExchangeService,
     asset: str,
-) -> ExchangeSymbol | None:
+) -> Instrument | None:
     asset_upper = asset.upper()
 
     try:
-        symbols = exchange_service.get_exchange_symbols()
+        instruments = exchange_service.get_instruments()
     except ExchangeError:
         return None
 
-    candidates: list[ExchangeSymbol] = []
+    candidates: list[Instrument] = []
 
-    for symbol_info in symbols:
-        base_asset = (symbol_info.base_asset or "").upper()
-        quote_asset = (symbol_info.quote_asset or "").upper()
+    for instrument in instruments:
+        base_asset = (
+            instrument.base_asset or ""
+        ).upper()
+        quote_asset = (
+            instrument.quote_asset or ""
+        ).upper()
 
         if base_asset != asset_upper:
             continue
@@ -162,12 +192,16 @@ def _resolve_asset_quote_symbol(
         if quote_asset not in {"USD", "USDT"}:
             continue
 
-        candidates.append(symbol_info)
+        candidates.append(instrument)
 
     if not candidates:
         return None
 
-    candidates.sort(key=_symbol_priority, reverse=True)
+    candidates.sort(
+        key=_instrument_priority,
+        reverse=True,
+    )
+
     return candidates[0]
 
 
@@ -184,18 +218,26 @@ def get_asset_usd_rate(
     if asset in price_cache:
         return price_cache[asset]
 
-    symbol_info = _resolve_asset_quote_symbol(exchange_service, asset)
-    if symbol_info is None:
+    instrument = _resolve_asset_quote_instrument(
+        exchange_service,
+        asset,
+    )
+
+    if instrument is None:
         price_cache[asset] = None
         return None
 
     try:
-        ticker = exchange_service.get_price(symbol_info.symbol)
-        rate = float(ticker.price)
+        quote = exchange_service.get_quote(
+            instrument.symbol
+        )
+        rate = float(quote.last_price)
 
-        # Пока считаем USDT ~= USD
+        # Пока считаем USDT ~= USD.
         price_cache[asset] = rate
+
         return rate
+
     except ExchangeError:
         price_cache[asset] = None
         return None
@@ -207,10 +249,16 @@ def estimate_balance_usd(
     price_cache: dict[str, float | None],
 ) -> float | None:
     total = balance_total(item)
+
     if total <= 0:
         return None
 
-    rate = get_asset_usd_rate(exchange_service, item.currency, price_cache)
+    rate = get_asset_usd_rate(
+        exchange_service,
+        item.currency,
+        price_cache,
+    )
+
     if rate is None:
         return None
 

app/src/trading/auto/execution_quality.py

@@ -6,6 +6,7 @@ import time
 
 from src.core.numbers import safe_float
 from src.core.types import NumericLike
+from src.integrations.exchange.models import ExecutionPriceSnapshot
 from src.integrations.exchange.service import ExchangeService
 from src.integrations.exchange.status import (
     ExchangeRuntimeStatus,
@@ -253,34 +254,20 @@ class AutoExecutionQualityMixin:
             return
 
         try:
-            snapshot = ExchangeService().get_market_snapshot(
+            snapshot = ExchangeService().get_execution_snapshot(
                 state.symbol,
                 runtime_key="auto",
             )
 
-            age_seconds = safe_float(snapshot.get("age_seconds"))
-
-            if (
-                age_seconds is not None
-                and age_seconds > self._warning_snapshot_age_seconds
-            ):
-                try:
-                    snapshot = ExchangeService().refresh_market_snapshot_cache(
-                        state.symbol,
-                        runtime_key="auto",
-                    )
-                except Exception:
-                    pass
-
         except Exception as exc:
             fallback_price = None
 
             try:
                 fallback_price = safe_float(
-                    ExchangeService().get_price(
+                    ExchangeService().get_quote(
                         state.symbol,
                         runtime_key="auto",
-                    ).price
+                    ).last_price
                 )
             except Exception:
                 pass
@@ -319,12 +306,12 @@ class AutoExecutionQualityMixin:
             )
             return
 
-        bid_price = safe_float(snapshot.get("bid_price"))
-        ask_price = safe_float(snapshot.get("ask_price"))
-        last_price = safe_float(snapshot.get("last_price"))
-        age_seconds = safe_float(snapshot.get("age_seconds"))
-        is_fresh = bool(snapshot.get("is_fresh", False))
-        source = str(snapshot.get("source") or "")
+        bid_price = safe_float(snapshot.bid_price)
+        ask_price = safe_float(snapshot.ask_price)
+        last_price = safe_float(snapshot.last_price)
+        age_seconds = safe_float(snapshot.age_seconds)
+        is_fresh = snapshot.is_fresh
+        source = snapshot.source
 
         self._sync_execution_pricing_state(
             state,
@@ -432,15 +419,15 @@ class AutoExecutionQualityMixin:
     def _sync_execution_pricing_state(
         self,
         state: AutoTradeState,
-        snapshot: dict[str, object],
+        snapshot: ExecutionPriceSnapshot,
     ) -> None:
-        age_seconds = safe_float(snapshot.get("age_seconds"))
+        age_seconds = safe_float(snapshot.age_seconds)
 
-        state.execution_price_source = str(snapshot.get("source") or "")
+        state.execution_price_source = snapshot.source
         state.execution_price_age_seconds = age_seconds
-        state.execution_bid_price = safe_float(snapshot.get("bid_price"))
-        state.execution_ask_price = safe_float(snapshot.get("ask_price"))
-        state.execution_last_price = safe_float(snapshot.get("last_price"))
+        state.execution_bid_price = safe_float(snapshot.bid_price)
+        state.execution_ask_price = safe_float(snapshot.ask_price)
+        state.execution_last_price = safe_float(snapshot.last_price)
 
         if age_seconds is None:
             state.execution_price_freshness = "UNKNOWN"

app/src/trading/auto/signal_runtime.py

@@ -9,6 +9,7 @@ from src.core.event_bus import EventBus
 from src.core.numbers import safe_float
 from src.core.types import JsonDict, NumericLike
 from src.integrations.exchange.service import ExchangeService
+from src.market_data.acquisition.models.quote import Quote
 from src.trading.auto.state import AutoTradeState
 from src.trading.auto.state_reset import (
     reset_after_market_runtime_expired,
@@ -716,7 +717,7 @@ class AutoSignalRuntimeMixin:
         self,
         *,
         state: AutoTradeState,
-        snapshot: JsonDict,
+        quote: Quote | None,
         signal: str,
         signal_intent: str,
         confidence: float,
@@ -787,9 +788,9 @@ class AutoSignalRuntimeMixin:
             "snapshot_age_seconds": state.snapshot_age_seconds,
 
             # ---------- Live Snapshot ----------
-            "bid_price": snapshot.get("bid_price"),
-            "ask_price": snapshot.get("ask_price"),
-            "last_price": snapshot.get("last_price"),
+            "bid_price": safe_float(quote.bid_price) if quote is not None else None,
+            "ask_price": safe_float(quote.ask_price) if quote is not None else None,
+            "last_price": safe_float(quote.last_price) if quote is not None else None,
 
             # ---------- Market Score ----------
             "market_score": state.market_score,
@@ -875,12 +876,12 @@ class AutoSignalRuntimeMixin:
             return
 
         try:
-            snapshot = ExchangeService().get_market_snapshot(
+            quote = ExchangeService().get_quote(
                 state.symbol,
                 runtime_key="auto",
             )
         except Exception:
-            snapshot = {}
+            quote = None
 
         try:
             JournalService().log_ui_info(
@@ -892,7 +893,7 @@ class AutoSignalRuntimeMixin:
                 action="signal_ready",
                 payload=self._build_ready_signal_payload(
                     state=state,
-                    snapshot=snapshot,
+                    quote=quote,
                     signal=normalized_signal,
                     signal_intent=signal_intent,
                     confidence=confidence,

app/src/trading/debug/execution.py

@@ -5,6 +5,7 @@ from __future__ import annotations
 import math
 from datetime import datetime
 
+from src.core.types import NumericLike
 from src.integrations.exchange.service import ExchangeService
 from src.trading.debug.state import DebugPositionState, DebugTradeState
 from src.trading.execution.models import ExecutionDecision
@@ -389,49 +390,88 @@ class DebugExecutionEngine:
         return self._market_last_price(state.symbol)
 
     def _entry_price_for_side(self, symbol: str, side: str) -> float:
-        snapshot = ExchangeService().get_fresh_market_snapshot(symbol)
+        snapshot = ExchangeService().get_execution_snapshot(
+            symbol,
+            runtime_key="debug_auto",
+        )
 
         if side == "LONG":
-            return self._snapshot_price(snapshot, "ask_price", "last_price")
+            return self._execution_price(
+                snapshot.ask_price,
+                snapshot.last_price,
+                price_name="ask_price",
+            )
 
         if side == "SHORT":
-            return self._snapshot_price(snapshot, "bid_price", "last_price")
+            return self._execution_price(
+                snapshot.bid_price,
+                snapshot.last_price,
+                price_name="bid_price",
+            )
 
-        return self._snapshot_price(snapshot, "last_price")
+        return self._execution_price(
+            snapshot.last_price,
+            price_name="last_price",
+        )
 
     def _exit_price_for_side(self, symbol: str, side: str) -> float:
-        snapshot = ExchangeService().get_fresh_market_snapshot(symbol)
+        snapshot = ExchangeService().get_execution_snapshot(
+            symbol,
+            runtime_key="debug_auto",
+        )
 
         if side == "LONG":
-            return self._snapshot_price(snapshot, "bid_price", "last_price")
+            return self._execution_price(
+                snapshot.bid_price,
+                snapshot.last_price,
+                price_name="bid_price",
+            )
 
         if side == "SHORT":
-            return self._snapshot_price(snapshot, "ask_price", "last_price")
+            return self._execution_price(
+                snapshot.ask_price,
+                snapshot.last_price,
+                price_name="ask_price",
+            )
 
-        return self._snapshot_price(snapshot, "last_price")
+        return self._execution_price(
+            snapshot.last_price,
+            price_name="last_price",
+        )
 
     def _market_last_price(self, symbol: str) -> float:
-        snapshot = ExchangeService().get_fresh_market_snapshot(symbol)
-        return self._snapshot_price(snapshot, "last_price")
+        snapshot = ExchangeService().get_execution_snapshot(
+            symbol,
+            runtime_key="debug_auto",
+        )
+        return self._execution_price(
+            snapshot.last_price,
+            price_name="last_price",
+        )
 
-    def _snapshot_price(
+    def _execution_price(
         self,
-        snapshot: dict[str, object],
-        primary_key: str,
-        fallback_key: str | None = None,
+        raw_price: NumericLike | None,
+        fallback_price: NumericLike | None = None,
+        *,
+        price_name: str,
     ) -> float:
-        raw_price = snapshot.get(primary_key)
+        value = raw_price
 
-        if raw_price is None and fallback_key is not None:
-            raw_price = snapshot.get(fallback_key)
+        if value is None:
+            value = fallback_price
 
-        if raw_price is None:
-            raise ValueError(f"Market snapshot price '{primary_key}' is missing.")
+        if value is None:
+            raise ValueError(
+                f"Execution price '{price_name}' is missing."
+            )
 
-        price = float(raw_price)
+        price = float(value)
 
         if price <= 0:
-            raise ValueError(f"Market snapshot price '{primary_key}' is invalid: {price}")
+            raise ValueError(
+                f"Execution price '{price_name}' is invalid: {price}"
+            )
 
         return price
 

app/src/trading/decision/__init__.py

@@ -0,0 +1 @@
+# app/src/trading/decision/__init__.py

app/src/trading/decision/exceptions.py

@@ -0,0 +1,19 @@
+# app/src/trading/decision/exceptions.py
+
+from __future__ import annotations
+
+
+class TradingError(Exception):
+    """Базовая ошибка Trading Layer."""
+
+
+class InvalidTradingDecisionError(TradingError):
+    """Trading Layer сформировал некорректное торговое решение."""
+
+
+class TradingValidationError(TradingError):
+    """Ошибка проверки входных данных Trading Layer."""
+
+
+class TradingExecutionError(TradingError):
+    """Ошибка выполнения Trading Layer."""

app/src/trading/decision/models.py

@@ -0,0 +1,67 @@
+# app/src/trading/decision/models.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+
+from src.trading.market_intelligence.common.enums import EngineStatus
+from src.trading.market_intelligence.common.models import CoordinatorResult
+from src.trading.market_intelligence.common.reasons import ReasonCode
+from src.trading.market_intelligence.common.scores import (
+    EngineConfidence,
+    EngineScore,
+)
+from src.trading.market_intelligence.common.types import (
+    ContextDict,
+    DiagnosticMessages,
+    DurationMs,
+    PayloadDict,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class TradingDiagnostics:
+    reason: ReasonCode = ReasonCode.UNKNOWN
+    details: ContextDict = field(default_factory=dict)
+    warnings: DiagnosticMessages = field(default_factory=list)
+    errors: DiagnosticMessages = field(default_factory=list)
+
+    @property
+    def has_warnings(self) -> bool:
+        return bool(self.warnings)
+
+    @property
+    def has_errors(self) -> bool:
+        return bool(self.errors)
+
+
+@dataclass(frozen=True, slots=True)
+class TradingEvaluationMeta:
+    trading_version: str
+    calculated_at: float | None = None
+    duration_ms: DurationMs | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class TradingDecision:
+    coordinator_result: CoordinatorResult
+    diagnostics: TradingDiagnostics = field(default_factory=TradingDiagnostics)
+    meta: TradingEvaluationMeta | None = None
+    payload: PayloadDict = field(default_factory=dict)
+
+    status: EngineStatus = EngineStatus.UNKNOWN
+    score: EngineScore = field(default_factory=EngineScore)
+    confidence: EngineConfidence = field(default_factory=EngineConfidence)
+    reason: ReasonCode = ReasonCode.UNKNOWN
+
+    @property
+    def is_usable(self) -> bool:
+        return self.status in {
+            EngineStatus.OK,
+            EngineStatus.PARTIAL,
+            EngineStatus.STALE,
+        }
+
+    @property
+    def has_errors(self) -> bool:
+        return self.diagnostics.has_errors

app/src/trading/decision/protocol.py

@@ -0,0 +1,19 @@
+# app/src/trading/decision/protocol.py
+
+from __future__ import annotations
+
+from typing import Protocol
+
+from src.trading.market_intelligence.common.models import CoordinatorResult
+from src.trading.decision.models import TradingDecision
+
+
+class TradingProtocol(Protocol):
+    """Контракт Trading Layer."""
+
+    async def decide(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> TradingDecision:
+        """Принять торговое решение на основе CoordinatorResult."""
+        ...

app/src/trading/decision/rules.py

@@ -0,0 +1,65 @@
+# app/src/trading/decision/rules.py
+
+from __future__ import annotations
+
+from src.trading.market_intelligence.common.enums import EngineStatus
+from src.trading.market_intelligence.common.models import CoordinatorResult
+from src.trading.decision.models import (
+    TradingDecision,
+    TradingDiagnostics,
+    TradingEvaluationMeta,
+)
+from src.trading.market_intelligence.common.reasons import ReasonCode
+from src.trading.market_intelligence.common.scores import (
+    EngineConfidence,
+    EngineScore,
+)
+
+
+class TradingRules:
+    """Правила формирования торгового решения."""
+
+    def decide(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> TradingDecision:
+        """Сформировать TradingDecision."""
+        return TradingDecision(
+            coordinator_result=coordinator_result,
+            diagnostics=TradingDiagnostics(),
+            meta=TradingEvaluationMeta(
+                trading_version="1.0",
+            ),
+            status=self._resolve_status(coordinator_result),
+            score=self._resolve_score(coordinator_result),
+            confidence=self._resolve_confidence(coordinator_result),
+            reason=self._resolve_reason(coordinator_result),
+        )
+
+    def _resolve_status(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> EngineStatus:
+        """Определить итоговый статус Trading."""
+        return coordinator_result.status
+
+    def _resolve_score(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> EngineScore:
+        """Вычислить итоговый Score."""
+        return EngineScore()
+
+    def _resolve_confidence(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> EngineConfidence:
+        """Вычислить итоговый Confidence."""
+        return EngineConfidence()
+
+    def _resolve_reason(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> ReasonCode:
+        """Определить причину принятого решения."""
+        return ReasonCode.UNKNOWN

app/src/trading/decision/service.py

@@ -0,0 +1,29 @@
+# app/src/trading/decision/service.py
+
+from __future__ import annotations
+
+from src.trading.market_intelligence.common.models import CoordinatorResult
+from src.trading.decision.models import TradingDecision
+from src.trading.decision.protocol import TradingProtocol
+from src.trading.decision.rules import TradingRules
+from src.trading.decision.validation import (
+    TradingValidation,
+)
+
+
+class TradingService(TradingProtocol):
+    """Единая публичная точка входа Trading Layer."""
+
+    def __init__(self) -> None:
+        """Создать Trading Service."""
+        self._validation = TradingValidation()
+        self._rules = TradingRules()
+
+    async def decide(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> TradingDecision:
+        """Сформировать торговое решение."""
+        self._validation.validate(coordinator_result)
+
+        return self._rules.decide(coordinator_result)

app/src/trading/decision/validation.py

@@ -0,0 +1,51 @@
+# app/src/trading/decision/validation.py
+
+from __future__ import annotations
+
+from src.trading.market_intelligence.common.models import CoordinatorResult
+from src.trading.decision.exceptions import (
+    TradingValidationError,
+)
+
+
+class TradingValidation:
+    """Проверка входного CoordinatorResult для Trading Layer."""
+
+    def validate(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> None:
+        """Проверить CoordinatorResult перед принятием торгового решения."""
+        self._validate_result_exists(coordinator_result)
+        self._validate_result_usable(coordinator_result)
+        self._validate_result_has_no_errors(coordinator_result)
+
+    def _validate_result_exists(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> None:
+        """Проверить, что CoordinatorResult передан."""
+        if coordinator_result is None:
+            raise TradingValidationError(
+                "CoordinatorResult is required for Trading."
+            )
+
+    def _validate_result_usable(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> None:
+        """Проверить пригодность CoordinatorResult для принятия решения."""
+        if not coordinator_result.is_usable:
+            raise TradingValidationError(
+                "CoordinatorResult is not usable."
+            )
+
+    def _validate_result_has_no_errors(
+        self,
+        coordinator_result: CoordinatorResult,
+    ) -> None:
+        """Проверить отсутствие критических ошибок Coordinator."""
+        if coordinator_result.has_errors:
+            raise TradingValidationError(
+                "CoordinatorResult contains errors."
+            )

app/src/trading/diagnostics/snapshot.py

@@ -259,20 +259,20 @@ class SemanticDiagnosticSnapshotBuilder:
         try:
             from src.integrations.exchange.service import ExchangeService
 
-            snapshot = ExchangeService().get_market_snapshot(
+            quote = ExchangeService().get_quote(
                 state.symbol,
                 runtime_key="auto",
             )
 
             side = str(state.position_side or "").upper()
 
-            price = snapshot.get("last_price")
+            price = quote.last_price
 
             if side == "LONG":
-                price = snapshot.get("bid_price") or price
+                price = quote.bid_price or price
 
             elif side == "SHORT":
-                price = snapshot.get("ask_price") or price
+                price = quote.ask_price or price
 
             return safe_float(price)
 

app/src/trading/market_intelligence/__init__.py

@@ -0,0 +1 @@
+# app/src/trading/market_intelligence/__init__.py

app/src/trading/market_intelligence/common/__init__.py

@@ -0,0 +1 @@
+# app/src/trading/market_intelligence/common/__init__.py

app/src/trading/market_intelligence/common/checks.py

@@ -0,0 +1,130 @@
+# app/src/trading/market_intelligence/common/checks.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+
+from src.trading.market_intelligence.common.enums import (
+    CheckStatus,
+    ProcessingStage,
+)
+from src.trading.market_intelligence.common.reasons import ReasonCode
+from src.trading.market_intelligence.common.types import (
+    ContextDict,
+    ReasonText,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class EngineCheck:
+    # Результат одной архитектурной проверки.
+    #
+    # Проверка относится не ко всему Engine, а к одному этапу обработки.
+    # Например:
+    #
+    # INPUT
+    # CALCULATION
+    # VALIDATION
+    # RESULT
+    #
+    # Engine может выполнить несколько независимых проверок,
+    # после чего они объединяются в общий отчёт.
+    stage: ProcessingStage
+    status: CheckStatus
+    reason: ReasonCode
+    message: ReasonText
+    details: ContextDict = field(default_factory=dict)
+
+    @property
+    def is_ok(self) -> bool:
+        return self.status == CheckStatus.OK
+
+    @property
+    def is_warning(self) -> bool:
+        return self.status == CheckStatus.WARNING
+
+    @property
+    def is_error(self) -> bool:
+        return self.status == CheckStatus.ERROR
+
+    @property
+    def is_skipped(self) -> bool:
+        return self.status == CheckStatus.SKIPPED
+
+
+@dataclass(frozen=True, slots=True)
+class EngineCheckReport:
+    # Общий результат внутренних проверок Engine.
+    #
+    # Отчёт не содержит торговой логики.
+    # Его задача — показать, какие этапы обработки были
+    # успешно выполнены, а какие завершились предупреждением,
+    # ошибкой или были пропущены.
+    checks: tuple[EngineCheck, ...] = ()
+
+    @property
+    def has_errors(self) -> bool:
+        return any(check.is_error for check in self.checks)
+
+    @property
+    def has_warnings(self) -> bool:
+        return any(check.is_warning for check in self.checks)
+
+    @property
+    def has_skipped(self) -> bool:
+        return any(check.is_skipped for check in self.checks)
+
+    @property
+    def overall_status(self) -> CheckStatus:
+        # Общий статус определяется по наиболее серьёзному результату.
+        if self.has_errors:
+            return CheckStatus.ERROR
+
+        if self.has_warnings:
+            return CheckStatus.WARNING
+
+        if self.has_skipped:
+            return CheckStatus.SKIPPED
+
+        return CheckStatus.OK
+
+    @property
+    def completed_checks(self) -> int:
+        return sum(
+            check.status != CheckStatus.SKIPPED
+            for check in self.checks
+        )
+
+    @property
+    def total_checks(self) -> int:
+        return len(self.checks)
+
+
+def build_check(
+    *,
+    stage: ProcessingStage,
+    status: CheckStatus,
+    reason: ReasonCode,
+    message: ReasonText,
+    details: ContextDict | None = None,
+) -> EngineCheck:
+    # Создаёт одну архитектурную проверку.
+    #
+    # Используется всеми Engine для формирования единого
+    # формата внутренних проверок.
+    return EngineCheck(
+        stage=stage,
+        status=status,
+        reason=reason,
+        message=message,
+        details=details or {},
+    )
+
+
+def build_check_report(
+    *checks: EngineCheck,
+) -> EngineCheckReport:
+    # Собирает общий отчёт из набора отдельных проверок.
+    #
+    # Порядок проверок сохраняется.
+    return EngineCheckReport(checks=checks)

app/src/trading/market_intelligence/common/constants.py

@@ -0,0 +1,125 @@
+# app/src/trading/market_intelligence/common/constants.py
+
+from __future__ import annotations
+
+
+# Минимальная и максимальная оценка движка.
+# Все аналитические оценки в Market Intelligence должны быть в диапазоне 0...100.
+MIN_SCORE = 0.0
+MAX_SCORE = 100.0
+
+
+# Минимальная и максимальная уверенность движка.
+# Уверенность показывает не силу сигнала, а насколько движок доверяет своему выводу.
+MIN_CONFIDENCE = 0.0
+MAX_CONFIDENCE = 1.0
+
+
+# Минимальная и максимальная вероятность.
+# Вероятность используется, например, для оценки продолжения движения или изменения направления.
+MIN_PROBABILITY = 0.0
+MAX_PROBABILITY = 100.0
+
+
+# Минимальный и максимальный вес показателя.
+# Вес показывает, насколько сильно отдельный показатель влияет на итоговую оценку.
+MIN_WEIGHT = 0.0
+MAX_WEIGHT = 1.0
+
+
+# Значения по умолчанию.
+# Они используются, когда данных недостаточно или движок безопасно возвращает пустой результат.
+DEFAULT_SCORE = 0.0
+DEFAULT_CONFIDENCE = 0.0
+DEFAULT_PROBABILITY = 0.0
+DEFAULT_WEIGHT = 1.0
+
+
+# Границы для словесной оценки качества score.
+# Эти значения не принимают торговых решений, а только помогают читать диагностику.
+WEAK_SCORE_THRESHOLD = 30.0
+NORMAL_SCORE_THRESHOLD = 50.0
+GOOD_SCORE_THRESHOLD = 70.0
+EXCELLENT_SCORE_THRESHOLD = 85.0
+
+
+# Границы для словесной оценки confidence.
+# Число confidence остаётся основным значением, а эти границы помогают
+# объяснять его человеку в журнале и диагностике.
+VERY_LOW_CONFIDENCE_THRESHOLD = 0.15
+LOW_CONFIDENCE_THRESHOLD = 0.30
+NORMAL_CONFIDENCE_THRESHOLD = 0.50
+HIGH_CONFIDENCE_THRESHOLD = 0.70
+VERY_HIGH_CONFIDENCE_THRESHOLD = 0.85
+
+
+# Возраст данных по умолчанию.
+# Если данные старше этого значения, результат можно считать устаревшим.
+DEFAULT_STALE_AFTER_SECONDS = 180.0
+
+
+# Время жизни аналитического сигнала по умолчанию.
+# Старый сигнал постепенно теряет значение для анализа.
+DEFAULT_SIGNAL_TTL_SECONDS = 180.0
+
+
+# Ограничение на количество зависимостей одного движка.
+# Это защитный архитектурный предел, чтобы движки не превращались
+# в большие модули, зависящие от всей платформы сразу.
+MAX_ENGINE_DEPENDENCIES = 8
+
+
+# Ограничение на количество метрик в одном результате.
+# Если метрик становится слишком много, значит движок, возможно,
+# начинает выполнять чужую работу и его нужно разделить.
+MAX_ENGINE_METRICS = 32
+
+
+# Ограничение на количество предупреждений в диагностике.
+# Это защищает журнал от слишком шумных записей.
+MAX_DIAGNOSTIC_WARNINGS = 16
+
+
+# Ограничение на количество ошибок в диагностике.
+# Даже если ошибок много, в результате нужно сохранять только полезную часть.
+MAX_DIAGNOSTIC_ERRORS = 16
+
+
+# Базовый набор таймфреймов для первого этапа Market Intelligence.
+# Движки не должны жёстко проверять эти значения внутри своей логики.
+DEFAULT_TIMEFRAMES = (
+    "1m",
+    "5m",
+    "15m",
+    "1h",
+)
+
+
+# Таймфреймы, которые архитектура должна поддерживать в будущем.
+# Они указаны здесь как допустимое расширение, но не обязаны использоваться
+# на первом этапе реализации.
+FUTURE_TIMEFRAMES = (
+    "4h",
+    "1d",
+    "1w",
+)
+
+
+# Поля, которые запрещены в результатах Market Intelligence.
+# Аналитический слой не должен принимать торговые решения или создавать заявки.
+FORBIDDEN_TRADING_FIELDS = frozenset(
+    {
+        "should_buy",
+        "should_sell",
+        "should_enter",
+        "should_exit",
+        "should_close",
+        "should_flip",
+        "open_position",
+        "close_position",
+        "place_order",
+        "cancel_order",
+        "leverage",
+        "order_id",
+    }
+)

app/src/trading/market_intelligence/common/enums.py

@@ -0,0 +1,152 @@
+# app/src/trading/market_intelligence/common/enums.py
+
+from __future__ import annotations
+
+from enum import StrEnum
+
+
+class MarketDirection(StrEnum):
+    # Направление движения цены.
+    # Это не торговое решение, а только описание того,
+    # куда в основном двигалась цена в анализируемом участке.
+    UNKNOWN = "unknown"
+    UP = "up"
+    DOWN = "down"
+    SIDEWAYS = "sideways"
+    MIXED = "mixed"
+
+
+class MarketBias(StrEnum):
+    # Общий перекос рынка.
+    # Например, рынок может быть больше в пользу роста,
+    # больше в пользу снижения или противоречивым.
+    UNKNOWN = "unknown"
+    BULLISH = "bullish"
+    BEARISH = "bearish"
+    NEUTRAL = "neutral"
+    CONFLICTED = "conflicted"
+
+
+class MarketPhase(StrEnum):
+    # Фаза рынка простыми словами:
+    # рынок может ускоряться, откатываться, восстанавливаться,
+    # расширять движение, выдыхаться или разворачиваться.
+    UNKNOWN = "unknown"
+    IMPULSE = "impulse"
+    PULLBACK = "pullback"
+    RECOVERY = "recovery"
+    EXPANSION = "expansion"
+    EXHAUSTION = "exhaustion"
+    REVERSAL = "reversal"
+    CONSOLIDATION = "consolidation"
+
+
+class MarketRegime(StrEnum):
+    # Режим рынка описывает общий характер поведения цены.
+    # Это помогает понять, рынок сейчас движется направленно,
+    # стоит в диапазоне, резко меняется или ведёт себя нестабильно.
+    UNKNOWN = "unknown"
+    TRENDING = "trending"
+    RANGE = "range"
+    BREAKOUT = "breakout"
+    MEAN_REVERSION = "mean_reversion"
+    HIGH_VOLATILITY = "high_volatility"
+    LOW_VOLATILITY = "low_volatility"
+    PANIC = "panic"
+    EUPHORIA = "euphoria"
+    ACCUMULATION = "accumulation"
+    DISTRIBUTION = "distribution"
+
+
+class MarketQuality(StrEnum):
+    # Качество рынка показывает, насколько рынок понятен для анализа.
+    # Плохое качество означает много шума и мало надёжных признаков.
+    UNKNOWN = "unknown"
+    POOR = "poor"
+    WEAK = "weak"
+    NORMAL = "normal"
+    GOOD = "good"
+    EXCELLENT = "excellent"
+
+
+class EngineStatus(StrEnum):
+    # Статус показывает, насколько успешно движок выполнил свою работу.
+    # Даже при ошибке движок должен вернуть понятный статус,
+    # чтобы вся система могла продолжить работу безопасно.
+    UNKNOWN = "unknown"
+    OK = "ok"
+    PARTIAL = "partial"
+    STALE = "stale"
+    INSUFFICIENT_DATA = "insufficient_data"
+    ERROR = "error"
+    DISABLED = "disabled"
+
+
+class ConfidenceLevel(StrEnum):
+    # Словесный уровень уверенности.
+    # Число confidence удобно для расчётов, но человеку проще читать
+    # понятный уровень: низкая, нормальная или высокая уверенность.
+    UNKNOWN = "unknown"
+    VERY_LOW = "very_low"
+    LOW = "low"
+    NORMAL = "normal"
+    HIGH = "high"
+    VERY_HIGH = "very_high"
+
+
+class SignalFreshness(StrEnum):
+    # Свежесть сигнала показывает его возраст.
+    # Старый сигнал постепенно теряет значение для анализа.
+    UNKNOWN = "unknown"
+    NEW = "new"
+    ACTIVE = "active"
+    AGING = "aging"
+    EXPIRED = "expired"
+
+
+class RiskLevel(StrEnum):
+    # Общий уровень риска рыночной ситуации.
+    # Это не решение закрыть или открыть сделку,
+    # а только оценка сложности текущего рынка.
+    UNKNOWN = "unknown"
+    LOW = "low"
+    NORMAL = "normal"
+    ELEVATED = "elevated"
+    HIGH = "high"
+    CRITICAL = "critical"
+
+
+class TimeframeRole(StrEnum):
+    # Роль временного интервала в общем анализе.
+    # Например, младший интервал показывает детали,
+    # а старший помогает понять общий фон.
+    UNKNOWN = "unknown"
+    LOWER = "lower"
+    PRIMARY = "primary"
+    HIGHER = "higher"
+    CONFIRMATION = "confirmation"
+
+
+class CheckStatus(StrEnum):
+    # Статус внутренней проверки блока.
+    # Используется, чтобы проверять движки по частям,
+    # а не ждать завершения всего движка целиком.
+    OK = "ok"
+    WARNING = "warning"
+    ERROR = "error"
+    SKIPPED = "skipped"
+
+
+class ProcessingStage(StrEnum):
+    # Этап обработки внутри движка или общего блока.
+    # Это не название файла, а смысловая часть работы:
+    # входные данные, расчёт, оценка, проверка, payload или результат.
+    UNKNOWN = "unknown"
+    INPUT = "input"
+    CALCULATION = "calculation"
+    EVALUATION = "evaluation"
+    VALIDATION = "validation"
+    PAYLOAD = "payload"
+    SNAPSHOT = "snapshot"
+    RESULT = "result"
+    EVENT = "event"

app/src/trading/market_intelligence/common/events.py

@@ -0,0 +1,110 @@
+# app/src/trading/market_intelligence/common/events.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from time import time
+
+from src.trading.market_intelligence.common.models import EngineResult
+from src.trading.market_intelligence.common.payloads import (
+    engine_result_to_payload,
+)
+from src.trading.market_intelligence.common.snapshots import (
+    EngineSnapshot,
+    build_engine_snapshot,
+    engine_snapshot_to_payload,
+)
+from src.trading.market_intelligence.common.types import (
+    EngineName,
+    PayloadDict,
+    SymbolName,
+    TimeframeName,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class MarketIntelligenceEvent:
+    # Событие Market Intelligence описывает факт завершения
+    # аналитического действия.
+    #
+    # Важно: этот объект сам ничего не публикует.
+    # Он только задаёт единый формат события, который позже сможет
+    # использовать EventBus, журнал или Runtime.
+    event_type: str
+    engine_name: EngineName
+    symbol: SymbolName
+    timeframe: TimeframeName
+    created_at: float
+    payload: PayloadDict = field(default_factory=dict)
+
+
+def build_engine_result_event(
+    result: EngineResult,
+    *,
+    event_type: str = "market_intelligence.engine_result",
+) -> MarketIntelligenceEvent:
+    # Формирует событие напрямую из EngineResult.
+    #
+    # Используется, когда нужно зафиксировать сам факт получения
+    # результата Engine без отдельного Snapshot.
+    return MarketIntelligenceEvent(
+        event_type=event_type,
+        engine_name=result.engine_name,
+        symbol=result.symbol,
+        timeframe=result.timeframe,
+        created_at=time(),
+        payload=engine_result_to_payload(result),
+    )
+
+
+def build_engine_snapshot_event(
+    snapshot: EngineSnapshot,
+    *,
+    event_type: str = "market_intelligence.engine_snapshot",
+) -> MarketIntelligenceEvent:
+    # Формирует событие из уже созданного Snapshot.
+    #
+    # Такой вариант нужен, когда сначала фиксируется состояние результата,
+    # а уже затем это состояние передаётся во внешний слой событий.
+    return MarketIntelligenceEvent(
+        event_type=event_type,
+        engine_name=snapshot.engine_name,
+        symbol=snapshot.symbol,
+        timeframe=snapshot.timeframe,
+        created_at=time(),
+        payload=engine_snapshot_to_payload(snapshot),
+    )
+
+
+def build_result_snapshot_event(
+    result: EngineResult,
+    *,
+    event_type: str = "market_intelligence.engine_snapshot",
+) -> MarketIntelligenceEvent:
+    # Удобный безопасный путь:
+    # EngineResult -> EngineSnapshot -> Event.
+    #
+    # Это сохраняет единый порядок фиксации результата анализа.
+    snapshot = build_engine_snapshot(result)
+
+    return build_engine_snapshot_event(
+        snapshot,
+        event_type=event_type,
+    )
+
+
+def market_intelligence_event_to_payload(
+    event: MarketIntelligenceEvent,
+) -> PayloadDict:
+    # Преобразует событие в обычный словарь.
+    #
+    # Функция нужна для будущей передачи события в журнал,
+    # EventBus или внешний Runtime-слой.
+    return {
+        "event_type": event.event_type,
+        "engine_name": event.engine_name,
+        "symbol": event.symbol,
+        "timeframe": event.timeframe,
+        "created_at": event.created_at,
+        "payload": event.payload,
+    }

app/src/trading/market_intelligence/common/models.py

@@ -0,0 +1,333 @@
+# app/src/trading/market_intelligence/common/models.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from typing import Any, Protocol
+
+from src.trading.market_intelligence.common.enums import (
+    EngineStatus,
+    MarketBias,
+    MarketDirection,
+    MarketPhase,
+    MarketRegime,
+    RiskLevel,
+)
+from src.trading.market_intelligence.common.reasons import ReasonCode
+from src.trading.market_intelligence.common.scores import (
+    EngineConfidence,
+    EngineScore,
+)
+from src.trading.market_intelligence.common.types import (
+    ContextDict,
+    DiagnosticMessages,
+    DiagnosticValue,
+    DurationMs,
+    EngineName,
+    EngineVersion,
+    MarketData,
+    MetricsDict,
+    PayloadDict,
+    SymbolName,
+    TimeframeName,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class EngineMetadata:
+    # Описание Engine как компонента платформы.
+    # Metadata не содержит аналитической логики и не является результатом анализа.
+    # Она нужна Runtime, Registry, Coordinator и документации.
+    name: EngineName
+    version: EngineVersion
+    description: str = ""
+    supported_timeframes: tuple[TimeframeName, ...] = ()
+    required_dependencies: tuple[EngineName, ...] = ()
+    optional_dependencies: tuple[EngineName, ...] = ()
+    enabled_by_default: bool = True
+
+
+class EngineTypeProtocol(Protocol):
+    # Минимальный контракт класса Engine для хранения в Common Layer.
+    # Common не должен импортировать EngineProtocol из Engine Layer.
+    @classmethod
+    def get_metadata(cls) -> EngineMetadata:
+        # Вернуть metadata Engine без создания экземпляра.
+        ...
+
+    async def analyze(
+        self,
+        context: EngineContext,
+    ) -> EngineResult:
+        # Выполнить анализ рыночного контекста.
+        ...
+
+
+@dataclass(frozen=True, slots=True)
+class EngineRegistration:
+    # Атомарная запись регистрации Engine.
+    # Не дублирует данные из EngineMetadata.
+    engine_type: type[EngineTypeProtocol]
+    metadata: EngineMetadata
+
+
+@dataclass(frozen=True, slots=True)
+class EngineMetric:
+    # Одна измеримая величина внутри движка.
+    # Например: сила движения, ширина спреда, возраст данных или качество структуры.
+    # Метрика не является решением, она только объясняет часть расчёта.
+    name: str
+    value: DiagnosticValue
+    unit: str | None = None
+    description: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class EngineDiagnostics:
+    # Диагностика объясняет, что произошло во время работы движка.
+    # Она нужна для журнала, отладки и будущих проверок качества.
+    reason: ReasonCode = ReasonCode.UNKNOWN
+    details: ContextDict = field(default_factory=dict)
+    warnings: DiagnosticMessages = field(default_factory=list)
+    errors: DiagnosticMessages = field(default_factory=list)
+
+    @property
+    def has_warnings(self) -> bool:
+        # Отдельный признак помогает быстро понять,
+        # были ли у движка некритичные проблемы.
+        return bool(self.warnings)
+
+    @property
+    def has_errors(self) -> bool:
+        # Ошибки не должны ломать всю платформу.
+        # Но результат должен честно сообщать, что они были.
+        return bool(self.errors)
+
+
+@dataclass(frozen=True, slots=True)
+class EngineEvaluationMeta:
+    # Служебная информация о расчёте.
+    # Она помогает понять, какой движок, какой версии и когда сформировал результат.
+    engine_name: EngineName
+    engine_version: EngineVersion
+    calculated_at: float | None = None
+    duration_ms: DurationMs | None = None
+    input_age_seconds: float | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class EngineDependencyResult:
+    # Краткое описание результата другого движка.
+    # Это позволяет использовать зависимости без прямого вызова соседних Engine.
+    engine_name: EngineName
+    status: EngineStatus = EngineStatus.UNKNOWN
+    score: EngineScore = field(default_factory=EngineScore)
+    confidence: EngineConfidence = field(default_factory=EngineConfidence)
+    reason: ReasonCode = ReasonCode.UNKNOWN
+    updated_at: float | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class EngineContext:
+    # Единый входной объект для любого Engine.
+    # Важно: здесь нет позиции, плеча, баланса, ордеров или Telegram.
+    # Market Intelligence получает только данные для анализа рынка.
+    symbol: SymbolName
+    timeframe: TimeframeName
+    market_data: MarketData = field(default_factory=dict)
+    previous_snapshot: Any | None = None
+    dependency_results: tuple[EngineDependencyResult, ...] = ()
+    settings: ContextDict = field(default_factory=dict)
+    metadata: ContextDict = field(default_factory=dict)
+    created_at: float | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class EngineResult:
+    # Единый результат любого аналитического движка.
+    # Это мнение о рынке, а не торговое действие.
+    engine_name: EngineName
+    engine_version: EngineVersion
+    symbol: SymbolName
+    timeframe: TimeframeName
+
+    status: EngineStatus = EngineStatus.UNKNOWN
+    score: EngineScore = field(default_factory=EngineScore)
+    confidence: EngineConfidence = field(default_factory=EngineConfidence)
+    reason: ReasonCode = ReasonCode.UNKNOWN
+
+    metrics: tuple[EngineMetric, ...] = ()
+    diagnostics: EngineDiagnostics = field(default_factory=EngineDiagnostics)
+    dependencies: tuple[EngineDependencyResult, ...] = ()
+    meta: EngineEvaluationMeta | None = None
+    payload: PayloadDict = field(default_factory=dict)
+
+    direction: MarketDirection = MarketDirection.UNKNOWN
+    bias: MarketBias = MarketBias.UNKNOWN
+    phase: MarketPhase = MarketPhase.UNKNOWN
+    regime: MarketRegime = MarketRegime.UNKNOWN
+    risk_level: RiskLevel = RiskLevel.UNKNOWN
+
+    @property
+    def is_ok(self) -> bool:
+        # Удобный признак для Coordinator.
+        # Он показывает, что движок отработал без критической ошибки.
+        return self.status == EngineStatus.OK
+
+    @property
+    def is_usable(self) -> bool:
+        # Результат может быть полезен даже если он частичный.
+        # Например, часть данных отсутствовала, но базовая оценка всё равно рассчитана.
+        return self.status in {
+            EngineStatus.OK,
+            EngineStatus.PARTIAL,
+            EngineStatus.STALE,
+        }
+
+    @property
+    def has_errors(self) -> bool:
+        # Быстрый доступ к признаку ошибок внутри диагностики.
+        return self.diagnostics.has_errors
+
+
+@dataclass(frozen=True, slots=True)
+class RuntimeResult:
+    # Единый результат выполнения Runtime.
+    # RuntimeResult агрегирует результаты нескольких Engine,
+    # но не содержит аналитики и не принимает торговых решений.
+    engine_results: tuple[EngineResult, ...] = ()
+    diagnostics: ContextDict = field(default_factory=dict)
+    started_at: float | None = None
+    finished_at: float | None = None
+    duration_ms: DurationMs | None = None
+    metadata: ContextDict = field(default_factory=dict)
+
+    @property
+    def successful_results(self) -> tuple[EngineResult, ...]:
+        # Результаты Engine, которые успешно завершили анализ.
+        return tuple(
+            result
+            for result in self.engine_results
+            if result.status == EngineStatus.OK
+        )
+
+    @property
+    def failed_results(self) -> tuple[EngineResult, ...]:
+        # Результаты Engine, которые завершились ошибкой.
+        return tuple(
+            result
+            for result in self.engine_results
+            if result.status == EngineStatus.ERROR
+        )
+
+    @property
+    def partial_results(self) -> tuple[EngineResult, ...]:
+        # Частичные, но потенциально пригодные результаты Engine.
+        return tuple(
+            result
+            for result in self.engine_results
+            if result.status == EngineStatus.PARTIAL
+        )
+
+    @property
+    def stale_results(self) -> tuple[EngineResult, ...]:
+        # Результаты Engine, построенные на устаревших данных.
+        return tuple(
+            result
+            for result in self.engine_results
+            if result.status == EngineStatus.STALE
+        )
+
+    @property
+    def executed_engines(self) -> tuple[EngineName, ...]:
+        # Имена Engine, которые вернули результат.
+        return tuple(result.engine_name for result in self.engine_results)
+
+    @property
+    def failed_engines(self) -> tuple[EngineName, ...]:
+        # Имена Engine, которые завершились ошибкой.
+        return tuple(result.engine_name for result in self.failed_results)
+
+    @property
+    def successful_engines(self) -> tuple[EngineName, ...]:
+        # Имена Engine, которые завершились успешно.
+        return tuple(result.engine_name for result in self.successful_results)
+
+    @property
+    def has_errors(self) -> bool:
+        # Быстрый признак наличия ошибок Runtime-выполнения.
+        return bool(self.failed_results)
+
+    @property
+    def is_successful(self) -> bool:
+        # Runtime считается успешным, если ни один Engine не завершился ERROR.
+        return not self.has_errors
+
+    @property
+    def total_engines(self) -> int:
+        # Количество Engine, вернувших результат.
+        return len(self.engine_results)
+
+    @property
+    def successful_count(self) -> int:
+        # Количество успешно завершённых Engine.
+        return len(self.successful_results)
+
+
+@dataclass(frozen=True, slots=True)
+class CoordinatorDiagnostics:
+    # Диагностика Coordinator.
+    reason: ReasonCode = ReasonCode.UNKNOWN
+    details: ContextDict = field(default_factory=dict)
+    warnings: DiagnosticMessages = field(default_factory=list)
+    errors: DiagnosticMessages = field(default_factory=list)
+
+    @property
+    def has_warnings(self) -> bool:
+        return bool(self.warnings)
+
+    @property
+    def has_errors(self) -> bool:
+        return bool(self.errors)
+
+
+@dataclass(frozen=True, slots=True)
+class CoordinatorEvaluationMeta:
+    # Служебная информация о расчёте Coordinator.
+    coordinator_version: str
+    calculated_at: float | None = None
+    duration_ms: DurationMs | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class CoordinatorResult:
+    # Единый результат Coordinator Layer.
+    # Это итоговая аналитическая интерпретация RuntimeResult,
+    # но ещё не торговое решение.
+    runtime_result: RuntimeResult
+    diagnostics: CoordinatorDiagnostics = field(default_factory=CoordinatorDiagnostics)
+    meta: CoordinatorEvaluationMeta | None = None
+    payload: PayloadDict = field(default_factory=dict)
+
+    status: EngineStatus = EngineStatus.UNKNOWN
+    score: EngineScore = field(default_factory=EngineScore)
+    confidence: EngineConfidence = field(default_factory=EngineConfidence)
+    reason: ReasonCode = ReasonCode.UNKNOWN
+
+    direction: MarketDirection = MarketDirection.UNKNOWN
+    bias: MarketBias = MarketBias.UNKNOWN
+    phase: MarketPhase = MarketPhase.UNKNOWN
+    regime: MarketRegime = MarketRegime.UNKNOWN
+    risk_level: RiskLevel = RiskLevel.UNKNOWN
+
+    @property
+    def is_usable(self) -> bool:
+        return self.status in {
+            EngineStatus.OK,
+            EngineStatus.PARTIAL,
+            EngineStatus.STALE,
+        }
+
+    @property
+    def has_errors(self) -> bool:
+        return self.diagnostics.has_errors

app/src/trading/market_intelligence/common/payloads.py

@@ -0,0 +1,173 @@
+# app/src/trading/market_intelligence/common/payloads.py
+
+from __future__ import annotations
+
+from dataclasses import asdict, is_dataclass
+from enum import Enum
+from typing import Any, Mapping, cast
+
+from src.trading.market_intelligence.common.models import (
+    EngineDependencyResult,
+    EngineDiagnostics,
+    EngineMetric,
+    EngineResult,
+)
+from src.trading.market_intelligence.common.scores import (
+    EngineConfidence,
+    EngineScore,
+)
+from src.trading.market_intelligence.common.types import PayloadDict
+from src.trading.market_intelligence.common.validation import (
+    validate_payload_has_no_trading_fields,
+)
+
+
+def value_to_payload(value: Any) -> Any:
+    # Приводит значение к виду, который безопасно положить в payload.
+    # Payload должен состоять из простых структур: dict, list, str, int,
+    # float, bool или None. Так его можно сохранить в журнал, событие
+    # или будущий snapshot.
+    if isinstance(value, Enum):
+        return value.value
+
+    if is_dataclass(value):
+        # is_dataclass() возвращает True и для экземпляров dataclass,
+        # и для самих классов dataclass. asdict() работает только
+        # с экземпляром, поэтому класс пропускаем как обычное значение.
+        if not isinstance(value, type):
+            return mapping_to_payload(asdict(value))
+
+    if isinstance(value, Mapping):
+        return mapping_to_payload(value)
+
+    if isinstance(value, (tuple, list)):
+        return [value_to_payload(item) for item in value]
+
+    return value
+
+
+def mapping_to_payload(mapping: Mapping[str, Any]) -> PayloadDict:
+    # Преобразует словарь в безопасный payload.
+    # Все вложенные enum, dataclass, list и tuple приводятся
+    # к простым значениям.
+    return {
+        str(key): value_to_payload(value)
+        for key, value in mapping.items()
+    }
+
+
+def engine_score_to_payload(score: EngineScore) -> PayloadDict:
+    # Сериализует оценку Engine.
+    # Оценка не является торговым решением,
+    # это только числовое качество анализа.
+    return {
+        "value": value_to_payload(score.value),
+        "quality": value_to_payload(score.quality),
+        "reason": value_to_payload(score.reason),
+    }
+
+
+def engine_confidence_to_payload(confidence: EngineConfidence) -> PayloadDict:
+    # Сериализует уверенность Engine.
+    # Уверенность показывает надёжность результата,
+    # а не торговую рекомендацию.
+    return {
+        "value": value_to_payload(confidence.value),
+        "level": value_to_payload(confidence.level),
+        "reason": value_to_payload(confidence.reason),
+        "is_reliable": confidence.is_reliable,
+    }
+
+
+def engine_metric_to_payload(metric: EngineMetric) -> PayloadDict:
+    # Сериализует одну измеримую метрику Engine.
+    return {
+        "name": metric.name,
+        "value": value_to_payload(metric.value),
+        "unit": metric.unit,
+        "description": metric.description,
+    }
+
+
+def engine_diagnostics_to_payload(
+    diagnostics: EngineDiagnostics,
+) -> PayloadDict:
+    # Сериализует диагностику Engine.
+    # Диагностика нужна для журнала и отладки,
+    # но не является пользовательским UI-текстом.
+    return {
+        "reason": value_to_payload(diagnostics.reason),
+        "details": mapping_to_payload(diagnostics.details),
+        "warnings": value_to_payload(diagnostics.warnings),
+        "errors": value_to_payload(diagnostics.errors),
+        "has_warnings": diagnostics.has_warnings,
+        "has_errors": diagnostics.has_errors,
+    }
+
+
+def engine_dependency_to_payload(
+    dependency: EngineDependencyResult,
+) -> PayloadDict:
+    # Сериализует краткий результат зависимого Engine.
+    # Это позволяет передавать результат зависимости
+    # без прямого импорта самого Engine.
+    return {
+        "engine_name": dependency.engine_name,
+        "status": value_to_payload(dependency.status),
+        "score": engine_score_to_payload(dependency.score),
+        "confidence": engine_confidence_to_payload(dependency.confidence),
+        "reason": value_to_payload(dependency.reason),
+        "updated_at": dependency.updated_at,
+    }
+
+
+def engine_result_to_payload(result: EngineResult) -> PayloadDict:
+    # Преобразует EngineResult в единый payload.
+    # Функция не меняет результат Engine и не добавляет торговые поля.
+    payload: PayloadDict = {
+        "engine_name": result.engine_name,
+        "engine_version": result.engine_version,
+        "symbol": result.symbol,
+        "timeframe": result.timeframe,
+        "status": value_to_payload(result.status),
+        "reason": value_to_payload(result.reason),
+        "score": engine_score_to_payload(result.score),
+        "confidence": engine_confidence_to_payload(result.confidence),
+        "metrics": [
+            engine_metric_to_payload(metric)
+            for metric in result.metrics
+        ],
+        "diagnostics": engine_diagnostics_to_payload(result.diagnostics),
+        "dependencies": [
+            engine_dependency_to_payload(dependency)
+            for dependency in result.dependencies
+        ],
+        "meta": value_to_payload(result.meta),
+        "payload": mapping_to_payload(result.payload),
+        "direction": value_to_payload(result.direction),
+        "bias": value_to_payload(result.bias),
+        "phase": value_to_payload(result.phase),
+        "regime": value_to_payload(result.regime),
+        "risk_level": value_to_payload(result.risk_level),
+        "is_ok": result.is_ok,
+        "is_usable": result.is_usable,
+        "has_errors": result.has_errors,
+    }
+
+    validation = validate_payload_has_no_trading_fields(payload)
+
+    if validation.is_ok:
+        return payload
+
+    # Если итоговый payload нарушил границы Market Intelligence,
+    # мы не скрываем проблему, а добавляем диагностический блок.
+    # Это не исправляет payload автоматически, чтобы нарушение
+    # было видно в журнале и при Engineering Review.
+    payload["payload_validation"] = {
+        "status": value_to_payload(validation.status),
+        "reason": value_to_payload(validation.reason),
+        "issues": value_to_payload(validation.issues),
+        "details": mapping_to_payload(validation.details),
+    }
+
+    return cast(PayloadDict, payload)

app/src/trading/market_intelligence/common/reasons.py

@@ -0,0 +1,153 @@
+# app/src/trading/market_intelligence/common/reasons.py
+
+from __future__ import annotations
+
+from enum import StrEnum
+
+
+class ReasonCode(StrEnum):
+    # Универсальный код причины.
+    # Движки используют эти значения, чтобы объяснить результат
+    # в машинно-читаемом виде. Человекочитаемый текст будет строиться
+    # отдельным слоем диагностики, а не внутри движка.
+
+    # ---------- Common ----------
+    UNKNOWN = "unknown"
+    OK = "ok"
+    NOT_APPLICABLE = "not_applicable"
+    SKIPPED = "skipped"
+
+    # ---------- Data ----------
+    INSUFFICIENT_DATA = "insufficient_data"
+    EMPTY_MARKET_DATA = "empty_market_data"
+    STALE_MARKET_DATA = "stale_market_data"
+    INVALID_MARKET_DATA = "invalid_market_data"
+    MISSING_PRICE_DATA = "missing_price_data"
+    MISSING_VOLUME_DATA = "missing_volume_data"
+    MISSING_TIMEFRAME_DATA = "missing_timeframe_data"
+
+    # ---------- Engine Runtime ----------
+    ENGINE_DISABLED = "engine_disabled"
+    ENGINE_ERROR = "engine_error"
+    ENGINE_PARTIAL_RESULT = "engine_partial_result"
+    ENGINE_DEPENDENCY_MISSING = "engine_dependency_missing"
+    ENGINE_DEPENDENCY_STALE = "engine_dependency_stale"
+    ENGINE_DEPENDENCY_ERROR = "engine_dependency_error"
+
+    # ---------- Validation ----------
+    VALIDATION_PASSED = "validation_passed"
+    VALIDATION_FAILED = "validation_failed"
+    SCORE_OUT_OF_RANGE = "score_out_of_range"
+    CONFIDENCE_OUT_OF_RANGE = "confidence_out_of_range"
+    PROBABILITY_OUT_OF_RANGE = "probability_out_of_range"
+    FORBIDDEN_TRADING_FIELD_FOUND = "forbidden_trading_field_found"
+    REQUIRED_FIELD_MISSING = "required_field_missing"
+
+    # ---------- Market State ----------
+    MARKET_UNDEFINED = "market_undefined"
+    MARKET_CLEAR = "market_clear"
+    MARKET_NOISY = "market_noisy"
+    MARKET_CONFLICTED = "market_conflicted"
+    MARKET_QUALITY_LOW = "market_quality_low"
+    MARKET_QUALITY_NORMAL = "market_quality_normal"
+    MARKET_QUALITY_HIGH = "market_quality_high"
+
+    # ---------- Structure ----------
+    STRUCTURE_UNDEFINED = "structure_undefined"
+    STRUCTURE_UP = "structure_up"
+    STRUCTURE_DOWN = "structure_down"
+    STRUCTURE_SIDEWAYS = "structure_sideways"
+    STRUCTURE_CHANGED = "structure_changed"
+    STRUCTURE_BROKEN = "structure_broken"
+
+    # ---------- Trend ----------
+    TREND_UNDEFINED = "trend_undefined"
+    TREND_UP = "trend_up"
+    TREND_DOWN = "trend_down"
+    TREND_SIDEWAYS = "trend_sideways"
+    TREND_STRONG = "trend_strong"
+    TREND_NORMAL = "trend_normal"
+    TREND_WEAK = "trend_weak"
+    TREND_CLEAN = "trend_clean"
+    TREND_NOISY = "trend_noisy"
+    TREND_OVEREXTENDED = "trend_overextended"
+
+    # ---------- Momentum ----------
+    MOMENTUM_UNDEFINED = "momentum_undefined"
+    MOMENTUM_UP = "momentum_up"
+    MOMENTUM_DOWN = "momentum_down"
+    MOMENTUM_ACCELERATING = "momentum_accelerating"
+    MOMENTUM_DECELERATING = "momentum_decelerating"
+    MOMENTUM_EXHAUSTED = "momentum_exhausted"
+    MOMENTUM_ABSENT = "momentum_absent"
+
+    # ---------- Volatility ----------
+    VOLATILITY_UNDEFINED = "volatility_undefined"
+    VOLATILITY_LOW = "volatility_low"
+    VOLATILITY_NORMAL = "volatility_normal"
+    VOLATILITY_HIGH = "volatility_high"
+    VOLATILITY_EXPANDING = "volatility_expanding"
+    VOLATILITY_COMPRESSING = "volatility_compressing"
+    VOLATILITY_UNSTABLE = "volatility_unstable"
+
+    # ---------- Wave ----------
+    WAVE_UNDEFINED = "wave_undefined"
+    WAVE_IMPULSE = "wave_impulse"
+    WAVE_PULLBACK = "wave_pullback"
+    WAVE_RECOVERY = "wave_recovery"
+    WAVE_MATURE = "wave_mature"
+    WAVE_COMPLETED = "wave_completed"
+    WAVE_TOO_SHORT = "wave_too_short"
+
+    # ---------- Cycle ----------
+    CYCLE_UNDEFINED = "cycle_undefined"
+    CYCLE_IMPULSE = "cycle_impulse"
+    CYCLE_PULLBACK = "cycle_pullback"
+    CYCLE_RECOVERY = "cycle_recovery"
+    CYCLE_EXPANSION = "cycle_expansion"
+    CYCLE_EXHAUSTION = "cycle_exhaustion"
+    CYCLE_REVERSAL = "cycle_reversal"
+
+    # ---------- Liquidity ----------
+    LIQUIDITY_UNDEFINED = "liquidity_undefined"
+    LIQUIDITY_GOOD = "liquidity_good"
+    LIQUIDITY_NORMAL = "liquidity_normal"
+    LIQUIDITY_POOR = "liquidity_poor"
+    SPREAD_NORMAL = "spread_normal"
+    SPREAD_WIDE = "spread_wide"
+    DEPTH_NORMAL = "depth_normal"
+    DEPTH_THIN = "depth_thin"
+    EXECUTION_QUALITY_LOW = "execution_quality_low"
+
+    # ---------- Regime ----------
+    REGIME_UNDEFINED = "regime_undefined"
+    REGIME_TRENDING = "regime_trending"
+    REGIME_RANGE = "regime_range"
+    REGIME_BREAKOUT = "regime_breakout"
+    REGIME_MEAN_REVERSION = "regime_mean_reversion"
+    REGIME_HIGH_VOLATILITY = "regime_high_volatility"
+    REGIME_LOW_VOLATILITY = "regime_low_volatility"
+    REGIME_PANIC = "regime_panic"
+    REGIME_EUPHORIA = "regime_euphoria"
+    REGIME_ACCUMULATION = "regime_accumulation"
+    REGIME_DISTRIBUTION = "regime_distribution"
+
+    # ---------- Confidence ----------
+    CONFIDENCE_UNDEFINED = "confidence_undefined"
+    CONFIDENCE_LOW = "confidence_low"
+    CONFIDENCE_NORMAL = "confidence_normal"
+    CONFIDENCE_HIGH = "confidence_high"
+    CONFIDENCE_UNSTABLE = "confidence_unstable"
+    CONFIDENCE_STABLE = "confidence_stable"
+
+    # ---------- Signal Aging ----------
+    SIGNAL_NEW = "signal_new"
+    SIGNAL_ACTIVE = "signal_active"
+    SIGNAL_AGING = "signal_aging"
+    SIGNAL_EXPIRED = "signal_expired"
+
+    # ---------- Timeframe ----------
+    TIMEFRAME_UNDEFINED = "timeframe_undefined"
+    TIMEFRAME_ALIGNED = "timeframe_aligned"
+    TIMEFRAME_CONFLICTED = "timeframe_conflicted"
+    TIMEFRAME_PRIMARY_MISSING = "timeframe_primary_missing"

app/src/trading/market_intelligence/common/scores.py

@@ -0,0 +1,263 @@
+# app/src/trading/market_intelligence/common/scores.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+
+from src.trading.market_intelligence.common.constants import (
+    DEFAULT_CONFIDENCE,
+    DEFAULT_PROBABILITY,
+    DEFAULT_SCORE,
+    DEFAULT_WEIGHT,
+    EXCELLENT_SCORE_THRESHOLD,
+    GOOD_SCORE_THRESHOLD,
+    HIGH_CONFIDENCE_THRESHOLD,
+    LOW_CONFIDENCE_THRESHOLD,
+    MAX_CONFIDENCE,
+    MAX_PROBABILITY,
+    MAX_SCORE,
+    MAX_WEIGHT,
+    MIN_CONFIDENCE,
+    MIN_PROBABILITY,
+    MIN_SCORE,
+    MIN_WEIGHT,
+    NORMAL_CONFIDENCE_THRESHOLD,
+    NORMAL_SCORE_THRESHOLD,
+    VERY_HIGH_CONFIDENCE_THRESHOLD,
+    VERY_LOW_CONFIDENCE_THRESHOLD,
+    WEAK_SCORE_THRESHOLD,
+)
+from src.trading.market_intelligence.common.enums import (
+    ConfidenceLevel,
+    MarketQuality,
+)
+from src.trading.market_intelligence.common.reasons import ReasonCode
+from src.trading.market_intelligence.common.types import (
+    ConfidenceValue,
+    ProbabilityValue,
+    ReasonCode as ReasonCodeType,
+    ScoreValue,
+    WeightValue,
+)
+
+
+def clamp_score(value: float | int | None) -> ScoreValue:
+    # Приводим оценку к безопасному диапазону 0...100.
+    # Это защищает все будущие движки от случайного выхода за границы шкалы.
+    if value is None:
+        return DEFAULT_SCORE
+
+    return max(MIN_SCORE, min(MAX_SCORE, float(value)))
+
+
+def clamp_confidence(value: float | int | None) -> ConfidenceValue:
+    # Приводим уверенность к безопасному диапазону 0...1.
+    # Уверенность показывает качество вывода, а не силу движения рынка.
+    if value is None:
+        return DEFAULT_CONFIDENCE
+
+    return max(MIN_CONFIDENCE, min(MAX_CONFIDENCE, float(value)))
+
+
+def clamp_probability(value: float | int | None) -> ProbabilityValue:
+    # Приводим вероятность к безопасному диапазону 0...100.
+    # Это единая шкала для будущих движков вероятности.
+    if value is None:
+        return DEFAULT_PROBABILITY
+
+    return max(MIN_PROBABILITY, min(MAX_PROBABILITY, float(value)))
+
+
+def clamp_weight(value: float | int | None) -> WeightValue:
+    # Приводим вес показателя к безопасному диапазону 0...1.
+    # Вес показывает, насколько сильно показатель влияет на итоговую оценку.
+    if value is None:
+        return DEFAULT_WEIGHT
+
+    return max(MIN_WEIGHT, min(MAX_WEIGHT, float(value)))
+
+
+def classify_score_quality(value: float | int | None) -> MarketQuality:
+    # Переводим числовую оценку в понятное качество.
+    # Это нужно для журнала и диагностики, чтобы не читать только сухие числа.
+    score = clamp_score(value)
+
+    if score >= EXCELLENT_SCORE_THRESHOLD:
+        return MarketQuality.EXCELLENT
+
+    if score >= GOOD_SCORE_THRESHOLD:
+        return MarketQuality.GOOD
+
+    if score >= NORMAL_SCORE_THRESHOLD:
+        return MarketQuality.NORMAL
+
+    if score >= WEAK_SCORE_THRESHOLD:
+        return MarketQuality.WEAK
+
+    return MarketQuality.POOR
+
+
+def classify_confidence_level(value: float | int | None) -> ConfidenceLevel:
+    # Переводим числовую уверенность в понятный уровень.
+    # Это помогает человеку быстро понять, насколько надёжен вывод движка.
+    confidence = clamp_confidence(value)
+
+    if confidence >= VERY_HIGH_CONFIDENCE_THRESHOLD:
+        return ConfidenceLevel.VERY_HIGH
+
+    if confidence >= HIGH_CONFIDENCE_THRESHOLD:
+        return ConfidenceLevel.HIGH
+
+    if confidence >= NORMAL_CONFIDENCE_THRESHOLD:
+        return ConfidenceLevel.NORMAL
+
+    if confidence >= LOW_CONFIDENCE_THRESHOLD:
+        return ConfidenceLevel.LOW
+
+    if confidence >= VERY_LOW_CONFIDENCE_THRESHOLD:
+        return ConfidenceLevel.VERY_LOW
+
+    return ConfidenceLevel.VERY_LOW
+
+
+@dataclass(frozen=True, slots=True)
+class EngineScore:
+    # Единая модель оценки движка.
+    # Оценка всегда хранится в диапазоне 0...100 и дополнительно имеет
+    # человекочитаемое качество для диагностики.
+    value: ScoreValue = DEFAULT_SCORE
+    quality: MarketQuality = MarketQuality.POOR
+    reason: ReasonCode = ReasonCode.UNKNOWN
+
+    @classmethod
+    def create(
+        cls,
+        value: float | int | None,
+        *,
+        reason: ReasonCode = ReasonCode.UNKNOWN,
+    ) -> EngineScore:
+        safe_value = clamp_score(value)
+
+        return cls(
+            value=safe_value,
+            quality=classify_score_quality(safe_value),
+            reason=reason,
+        )
+
+
+@dataclass(frozen=True, slots=True)
+class EngineConfidence:
+    # Единая модель уверенности движка.
+    # Уверенность показывает, насколько результат можно считать надёжным.
+    value: ConfidenceValue = DEFAULT_CONFIDENCE
+    level: ConfidenceLevel = ConfidenceLevel.VERY_LOW
+    reason: ReasonCode = ReasonCode.UNKNOWN
+
+    @property
+    def is_reliable(self) -> bool:
+        # Считаем результат достаточно надёжным, если уверенность
+        # не ниже нормального уровня.
+        return self.value >= NORMAL_CONFIDENCE_THRESHOLD
+
+    @classmethod
+    def create(
+        cls,
+        value: float | int | None,
+        *,
+        reason: ReasonCode = ReasonCode.UNKNOWN,
+    ) -> EngineConfidence:
+        safe_value = clamp_confidence(value)
+
+        return cls(
+            value=safe_value,
+            level=classify_confidence_level(safe_value),
+            reason=reason,
+        )
+
+
+@dataclass(frozen=True, slots=True)
+class ProbabilityScore:
+    # Единая модель вероятности.
+    # Используется для будущих движков продолжения и изменения направления.
+    value: ProbabilityValue = DEFAULT_PROBABILITY
+    confidence: EngineConfidence = field(default_factory=EngineConfidence)
+    reason: ReasonCode = ReasonCode.UNKNOWN
+
+    @classmethod
+    def create(
+        cls,
+        value: float | int | None,
+        *,
+        confidence: EngineConfidence | None = None,
+        reason: ReasonCode = ReasonCode.UNKNOWN,
+    ) -> ProbabilityScore:
+        return cls(
+            value=clamp_probability(value),
+            confidence=confidence or EngineConfidence(),
+            reason=reason,
+        )
+
+
+@dataclass(frozen=True, slots=True)
+class WeightedScore:
+    # Одна часть итоговой оценки.
+    # Например, общий результат может состоять из оценки тренда,
+    # оценки изменчивости рынка и оценки ликвидности.
+    name: str
+    value: ScoreValue
+    weight: WeightValue = DEFAULT_WEIGHT
+    reason: ReasonCodeType = ReasonCode.UNKNOWN
+
+    @property
+    def weighted_value(self) -> float:
+        # Возвращает вклад этой части в итоговую оценку.
+        return self.value * self.weight
+
+    @classmethod
+    def create(
+        cls,
+        *,
+        name: str,
+        value: float | int | None,
+        weight: float | int | None = DEFAULT_WEIGHT,
+        reason: ReasonCode = ReasonCode.UNKNOWN,
+    ) -> WeightedScore:
+        return cls(
+            name=name,
+            value=clamp_score(value),
+            weight=clamp_weight(weight),
+            reason=reason,
+        )
+
+
+@dataclass(frozen=True, slots=True)
+class ScoreBreakdown:
+    # Подробная структура итоговой оценки.
+    # Нужна для диагностики: система должна объяснять, из каких частей
+    # получилась итоговая оценка.
+    items: tuple[WeightedScore, ...] = ()
+
+    @property
+    def total_weight(self) -> float:
+        return sum(item.weight for item in self.items)
+
+    @property
+    def total_score(self) -> float:
+        return sum(item.weighted_value for item in self.items)
+
+    @property
+    def final_score(self) -> ScoreValue:
+        # Если веса отсутствуют, безопасно возвращаем нулевую оценку.
+        # Это лучше, чем делить на ноль или создавать ложный результат.
+        if self.total_weight <= 0:
+            return DEFAULT_SCORE
+
+        return clamp_score(self.total_score / self.total_weight)
+
+    @property
+    def quality(self) -> MarketQuality:
+        return classify_score_quality(self.final_score)
+
+    @classmethod
+    def create(cls, items: tuple[WeightedScore, ...]) -> ScoreBreakdown:
+        return cls(items=items)

app/src/trading/market_intelligence/common/snapshots.py

@@ -0,0 +1,79 @@
+# app/src/trading/market_intelligence/common/snapshots.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from time import time
+
+from src.trading.market_intelligence.common.models import EngineResult
+from src.trading.market_intelligence.common.payloads import (
+    engine_result_to_payload,
+)
+from src.trading.market_intelligence.common.types import (
+    EngineName,
+    EngineVersion,
+    PayloadDict,
+    SymbolName,
+    TimeframeName,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class EngineSnapshot:
+    # Snapshot представляет собой неизменяемый снимок результата работы
+    # аналитического движка в определённый момент времени.
+    #
+    # Snapshot используется для:
+    #
+    # • журналирования;
+    # • Runtime Diagnostics;
+    # • последующего сравнения состояний;
+    # • формирования Event;
+    # • хранения истории анализа.
+    #
+    # Snapshot не является Runtime-состоянием движка.
+    # После создания его содержимое больше не изменяется.
+
+    engine_name: EngineName
+    engine_version: EngineVersion
+
+    symbol: SymbolName
+    timeframe: TimeframeName
+
+    created_at: float
+
+    payload: PayloadDict = field(default_factory=dict)
+
+
+def build_engine_snapshot(result: EngineResult) -> EngineSnapshot:
+    # Формирует неизменяемый Snapshot из результата Engine.
+    #
+    # Snapshot всегда строится через общий Payload Layer,
+    # чтобы все движки сохраняли результаты в едином формате.
+
+    return EngineSnapshot(
+        engine_name=result.engine_name,
+        engine_version=result.engine_version,
+        symbol=result.symbol,
+        timeframe=result.timeframe,
+        created_at=time(),
+        payload=engine_result_to_payload(result),
+    )
+
+
+def engine_snapshot_to_payload(
+    snapshot: EngineSnapshot,
+) -> PayloadDict:
+    # Преобразует Snapshot в сериализуемый Payload.
+    #
+    # Отдельная функция позволяет в будущем расширять Snapshot,
+    # не изменяя код остальных компонентов платформы.
+
+    return {
+        "engine_name": snapshot.engine_name,
+        "engine_version": snapshot.engine_version,
+        "symbol": snapshot.symbol,
+        "timeframe": snapshot.timeframe,
+        "created_at": snapshot.created_at,
+        "payload": snapshot.payload,
+    }

app/src/trading/market_intelligence/common/timeframes.py

@@ -0,0 +1,169 @@
+# app/src/trading/market_intelligence/common/timeframes.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from src.trading.market_intelligence.common.enums import TimeframeRole
+from src.trading.market_intelligence.common.types import (
+    TimeframeName,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class Timeframe:
+    # Единое описание временного интервала.
+    #
+    # Timeframe не знает ничего о бирже, стратегии или торговом решении.
+    # Он только описывает длительность интервала и его базовую роль
+    # внутри многоуровневого анализа рынка.
+    name: TimeframeName
+    duration_minutes: int
+    role: TimeframeRole = TimeframeRole.UNKNOWN
+    description: str | None = None
+
+
+M1 = Timeframe(
+    name="1m",
+    duration_minutes=1,
+    role=TimeframeRole.LOWER,
+    description="Минутный интервал для детального краткосрочного анализа.",
+)
+
+M5 = Timeframe(
+    name="5m",
+    duration_minutes=5,
+    role=TimeframeRole.PRIMARY,
+    description="Основной рабочий интервал первого этапа Market Intelligence.",
+)
+
+M15 = Timeframe(
+    name="15m",
+    duration_minutes=15,
+    role=TimeframeRole.CONFIRMATION,
+    description="Интервал подтверждения между локальным и старшим анализом.",
+)
+
+H1 = Timeframe(
+    name="1h",
+    duration_minutes=60,
+    role=TimeframeRole.HIGHER,
+    description="Старший интервал, совместимый с текущим HTF-анализом.",
+)
+
+H4 = Timeframe(
+    name="4h",
+    duration_minutes=240,
+    role=TimeframeRole.HIGHER,
+    description="Старший интервал для будущего более глубокого анализа.",
+)
+
+D1 = Timeframe(
+    name="1d",
+    duration_minutes=1440,
+    role=TimeframeRole.HIGHER,
+    description="Дневной интервал для будущего долгосрочного контекста.",
+)
+
+W1 = Timeframe(
+    name="1w",
+    duration_minutes=10080,
+    role=TimeframeRole.HIGHER,
+    description="Недельный интервал для будущего стратегического контекста.",
+)
+
+
+SUPPORTED_TIMEFRAMES: tuple[Timeframe, ...] = (
+    M1,
+    M5,
+    M15,
+    H1,
+    H4,
+    D1,
+    W1,
+)
+
+
+SUPPORTED_TIMEFRAME_NAMES: tuple[TimeframeName, ...] = tuple(
+    timeframe.name
+    for timeframe in SUPPORTED_TIMEFRAMES
+)
+
+
+# Базовая карта старшего таймфрейма.
+# Она сохраняет совместимость с текущим MarketAnalysisService,
+# где для рабочего 5m используется старший 1h.
+HIGHER_TIMEFRAME_BY_NAME: dict[TimeframeName, TimeframeName] = {
+    "1m": "5m",
+    "5m": "1h",
+    "15m": "1h",
+    "1h": "4h",
+    "4h": "1d",
+    "1d": "1w",
+}
+
+
+def get_timeframe(name: TimeframeName) -> Timeframe | None:
+    # Возвращает описание таймфрейма по его имени.
+    # Если интервал пока не поддерживается архитектурой,
+    # возвращается None вместо исключения.
+    normalized_name = str(name).strip().lower()
+
+    for timeframe in SUPPORTED_TIMEFRAMES:
+        if timeframe.name == normalized_name:
+            return timeframe
+
+    return None
+
+
+def require_timeframe(name: TimeframeName) -> Timeframe:
+    # Возвращает Timeframe или явно сообщает о неподдерживаемом интервале.
+    # Эту функцию следует использовать там, где отсутствие таймфрейма
+    # является ошибкой конфигурации, а не обычным Runtime-состоянием.
+    timeframe = get_timeframe(name)
+
+    if timeframe is None:
+        raise ValueError(f"Unsupported timeframe: {name}")
+
+    return timeframe
+
+
+def is_supported_timeframe(name: TimeframeName) -> bool:
+    # Проверяет, известен ли интервал архитектуре Market Intelligence.
+    return get_timeframe(name) is not None
+
+
+def get_higher_timeframe(name: TimeframeName) -> Timeframe | None:
+    # Возвращает старший таймфрейм для указанного интервала.
+    # Если для интервала нет старшего уровня, возвращается None.
+    normalized_name = str(name).strip().lower()
+    higher_name = HIGHER_TIMEFRAME_BY_NAME.get(normalized_name)
+
+    if higher_name is None:
+        return None
+
+    return get_timeframe(higher_name)
+
+
+def get_timeframes_by_role(
+    role: TimeframeRole,
+) -> tuple[Timeframe, ...]:
+    # Возвращает все интервалы с указанной архитектурной ролью.
+    # Это пригодится Multi-Timeframe Engine без жёсткой привязки
+    # к конкретным строковым значениям.
+    return tuple(
+        timeframe
+        for timeframe in SUPPORTED_TIMEFRAMES
+        if timeframe.role == role
+    )
+
+
+def timeframe_to_payload(timeframe: Timeframe) -> dict[str, object]:
+    # Преобразует описание таймфрейма в простой словарь.
+    # Это нужно для диагностики, payload и будущих snapshot.
+    return {
+        "name": timeframe.name,
+        "duration_minutes": timeframe.duration_minutes,
+        "role": timeframe.role.value,
+        "description": timeframe.description,
+    }

app/src/trading/market_intelligence/common/types.py

@@ -0,0 +1,112 @@
+# app/src/trading/market_intelligence/common/types.py
+
+from __future__ import annotations
+
+from typing import Any, TypeAlias
+
+from src.core.types import JsonDict, JsonList
+
+
+# Название торгового инструмента.
+# Например: BTC/USD, ETH/USD.
+SymbolName: TypeAlias = str
+
+
+# Название временного интервала.
+# Например: 1m, 5m, 15m, 1h.
+TimeframeName: TypeAlias = str
+
+
+# Название движка Market Intelligence.
+# Например: trend, momentum, volatility.
+EngineName: TypeAlias = str
+
+
+# Версия движка.
+# Нужна для журнала и диагностики, чтобы понимать,
+# какая версия логики рассчитала конкретный результат.
+EngineVersion: TypeAlias = str
+
+
+# Код причины.
+# Это короткое машинное имя причины, которое удобно хранить в журнале,
+# payload и внутренних проверках.
+ReasonCode: TypeAlias = str
+
+
+# Человекочитаемое описание причины.
+# Оно должно быть понятно без глубоких знаний трейдинга.
+ReasonText: TypeAlias = str
+
+
+# Оценка от 0 до 100.
+# 0 означает очень слабое качество или отсутствие признака.
+# 100 означает максимально сильное качество или признак.
+ScoreValue: TypeAlias = float
+
+
+# Уверенность от 0 до 1.
+# 0 означает, что движок не уверен в своём выводе.
+# 1 означает, что данных достаточно и вывод считается надёжным.
+ConfidenceValue: TypeAlias = float
+
+
+# Вероятность от 0 до 100.
+# Используется для оценки вероятности события.
+# Например, продолжения движения или изменения направления.
+ProbabilityValue: TypeAlias = float
+
+
+# Вес показателя при сборе общей оценки.
+# Чем больше вес, тем сильнее показатель влияет на итоговую оценку.
+WeightValue: TypeAlias = float
+
+
+# Возраст данных или сигнала в секундах.
+# Нужен, чтобы понимать, насколько свежий результат использует система.
+AgeSeconds: TypeAlias = float
+
+
+# Длительность выполнения в миллисекундах.
+# Нужна для диагностики производительности движков.
+DurationMs: TypeAlias = float
+
+
+# Метрики движка.
+# Здесь хранятся измеримые значения: наклон, расстояние, скорость,
+# качество движения, возраст сигнала и другие расчётные данные.
+MetricsDict: TypeAlias = JsonDict
+
+
+# Payload движка.
+# Это единый диагностический словарь для журнала, событий и отладки.
+PayloadDict: TypeAlias = JsonDict
+
+
+# Дополнительный контекст.
+# Используется для редких служебных данных, которые не стоит делать
+# отдельными полями базовой модели.
+ContextDict: TypeAlias = JsonDict
+
+
+# Сырые рыночные данные.
+# Формат может отличаться в зависимости от источника данных,
+# поэтому пока оставляем его универсальным.
+MarketData: TypeAlias = JsonDict
+
+
+# Результаты зависимых движков.
+# Ключ — имя движка, значение — его результат или диагностический снимок.
+# Пока используется Any, поскольку общий результат Engine
+# будет определён позже в models.py.
+DependencyResults: TypeAlias = dict[EngineName, Any]
+
+
+# Список диагностических сообщений.
+# Используется там, где один блок может вернуть несколько предупреждений.
+DiagnosticMessages: TypeAlias = JsonList
+
+
+# Универсальное значение для диагностических деталей.
+# Например: число, строка, список, словарь или None.
+DiagnosticValue: TypeAlias = Any

app/src/trading/market_intelligence/common/validation.py

@@ -0,0 +1,258 @@
+# app/src/trading/market_intelligence/common/validation.py
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+
+from src.trading.market_intelligence.common.constants import (
+    FORBIDDEN_TRADING_FIELDS,
+    MAX_ENGINE_DEPENDENCIES,
+    MAX_ENGINE_METRICS,
+)
+from src.trading.market_intelligence.common.enums import CheckStatus, EngineStatus
+from src.trading.market_intelligence.common.models import (
+    EngineContext,
+    EngineResult,
+)
+from src.trading.market_intelligence.common.reasons import ReasonCode
+from src.trading.market_intelligence.common.types import (
+    ContextDict,
+    PayloadDict,
+    ReasonText,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class ValidationIssue:
+    # Одна проблема, найденная во время проверки.
+    # Это не ошибка Python, а понятное описание нарушения контракта.
+    status: CheckStatus
+    reason: ReasonCode
+    message: ReasonText
+    field_name: str | None = None
+
+
+@dataclass(frozen=True, slots=True)
+class ValidationResult:
+    # Итог проверки одного объекта.
+    # Validation Layer не выбрасывает исключения, а возвращает результат,
+    # который можно безопасно записать в журнал или диагностику.
+    status: CheckStatus = CheckStatus.OK
+    reason: ReasonCode = ReasonCode.VALIDATION_PASSED
+    issues: tuple[ValidationIssue, ...] = ()
+    details: ContextDict = field(default_factory=dict)
+
+    @property
+    def is_ok(self) -> bool:
+        # Проверка считается успешной только если нет ошибок.
+        return self.status == CheckStatus.OK
+
+    @property
+    def has_errors(self) -> bool:
+        return any(issue.status == CheckStatus.ERROR for issue in self.issues)
+
+    @property
+    def has_warnings(self) -> bool:
+        return any(issue.status == CheckStatus.WARNING for issue in self.issues)
+
+
+def _validation_result_from_issues(
+    issues: tuple[ValidationIssue, ...],
+    *,
+    details: ContextDict | None = None,
+) -> ValidationResult:
+    # Собираем общий статус из списка найденных проблем.
+    # Ошибка важнее предупреждения, предупреждение важнее OK.
+    if any(issue.status == CheckStatus.ERROR for issue in issues):
+        return ValidationResult(
+            status=CheckStatus.ERROR,
+            reason=ReasonCode.VALIDATION_FAILED,
+            issues=issues,
+            details=details or {},
+        )
+
+    if any(issue.status == CheckStatus.WARNING for issue in issues):
+        return ValidationResult(
+            status=CheckStatus.WARNING,
+            reason=ReasonCode.VALIDATION_PASSED,
+            issues=issues,
+            details=details or {},
+        )
+
+    return ValidationResult(
+        status=CheckStatus.OK,
+        reason=ReasonCode.VALIDATION_PASSED,
+        issues=issues,
+        details=details or {},
+    )
+
+
+def validate_payload_has_no_trading_fields(
+    payload: PayloadDict,
+) -> ValidationResult:
+    # Market Intelligence не должен отдавать торговые команды.
+    # Поэтому payload проверяется на поля, похожие на действия торговли.
+    issues: list[ValidationIssue] = []
+
+    for field_name in sorted(FORBIDDEN_TRADING_FIELDS):
+        if field_name in payload:
+            issues.append(
+                ValidationIssue(
+                    status=CheckStatus.ERROR,
+                    reason=ReasonCode.FORBIDDEN_TRADING_FIELD_FOUND,
+                    message=(
+                        "Payload содержит поле, запрещённое для "
+                        "аналитического слоя Market Intelligence."
+                    ),
+                    field_name=field_name,
+                )
+            )
+
+    return _validation_result_from_issues(
+        tuple(issues),
+        details={"checked_fields": sorted(FORBIDDEN_TRADING_FIELDS)},
+    )
+
+
+def validate_engine_context(context: EngineContext) -> ValidationResult:
+    # Проверяем только базовый входной контракт Engine.
+    # Глубокая проверка рыночных данных будет задачей отдельных Engine,
+    # потому что разные движки могут требовать разные данные.
+    issues: list[ValidationIssue] = []
+
+    if not context.symbol:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.REQUIRED_FIELD_MISSING,
+                message="В EngineContext не указан торговый инструмент.",
+                field_name="symbol",
+            )
+        )
+
+    if not context.timeframe:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.REQUIRED_FIELD_MISSING,
+                message="В EngineContext не указан таймфрейм анализа.",
+                field_name="timeframe",
+            )
+        )
+
+    if not context.market_data:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.EMPTY_MARKET_DATA,
+                message="В EngineContext отсутствуют рыночные данные.",
+                field_name="market_data",
+            )
+        )
+
+    if len(context.dependency_results) > MAX_ENGINE_DEPENDENCIES:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.WARNING,
+                reason=ReasonCode.ENGINE_DEPENDENCY_ERROR,
+                message=(
+                    "Количество зависимостей Engine превышает "
+                    "архитектурный лимит Common Layer."
+                ),
+                field_name="dependency_results",
+            )
+        )
+
+    return _validation_result_from_issues(
+        tuple(issues),
+        details={
+            "symbol": context.symbol,
+            "timeframe": context.timeframe,
+            "dependency_count": len(context.dependency_results),
+        },
+    )
+
+
+def validate_engine_result(result: EngineResult) -> ValidationResult:
+    # Проверяем единый результат Engine.
+    # Эта проверка не оценивает качество анализа рынка,
+    # а только подтверждает соблюдение Runtime Contract.
+    issues: list[ValidationIssue] = []
+
+    if not result.engine_name:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.REQUIRED_FIELD_MISSING,
+                message="В EngineResult не указано имя движка.",
+                field_name="engine_name",
+            )
+        )
+
+    if not result.engine_version:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.REQUIRED_FIELD_MISSING,
+                message="В EngineResult не указана версия движка.",
+                field_name="engine_version",
+            )
+        )
+
+    if not result.symbol:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.REQUIRED_FIELD_MISSING,
+                message="В EngineResult не указан торговый инструмент.",
+                field_name="symbol",
+            )
+        )
+
+    if not result.timeframe:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.ERROR,
+                reason=ReasonCode.REQUIRED_FIELD_MISSING,
+                message="В EngineResult не указан таймфрейм анализа.",
+                field_name="timeframe",
+            )
+        )
+
+    if result.status == EngineStatus.UNKNOWN:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.WARNING,
+                reason=ReasonCode.VALIDATION_FAILED,
+                message="EngineResult вернул неопределённый статус выполнения.",
+                field_name="status",
+            )
+        )
+
+    if len(result.metrics) > MAX_ENGINE_METRICS:
+        issues.append(
+            ValidationIssue(
+                status=CheckStatus.WARNING,
+                reason=ReasonCode.VALIDATION_FAILED,
+                message=(
+                    "Количество метрик Engine превышает архитектурный лимит. "
+                    "Возможно, движок выполняет слишком много задач."
+                ),
+                field_name="metrics",
+            )
+        )
+
+    payload_validation = validate_payload_has_no_trading_fields(result.payload)
+    issues.extend(payload_validation.issues)
+
+    return _validation_result_from_issues(
+        tuple(issues),
+        details={
+            "engine_name": result.engine_name,
+            "engine_version": result.engine_version,
+            "symbol": result.symbol,
+            "timeframe": result.timeframe,
+            "status": result.status.value,
+            "metrics_count": len(result.metrics),
+        },
+    )

app/src/trading/market_intelligence/coordinator/__init__.py

@@ -0,0 +1,2 @@
+# app/src/trading/market_intelligence/coordinator/__init__.py
+

app/src/trading/market_intelligence/coordinator/exceptions.py

@@ -0,0 +1,19 @@
+# app/src/trading/market_intelligence/coordinator/exceptions.py
+
+from __future__ import annotations
+
+
+class CoordinatorError(Exception):
+    """Базовая ошибка Coordinator Layer."""
+
+
+class InvalidCoordinatorResultError(CoordinatorError):
+    """Coordinator сформировал некорректный результат."""
+
+
+class CoordinatorValidationError(CoordinatorError):
+    """Ошибка проверки входных данных Coordinator."""
+
+
+class CoordinatorExecutionError(CoordinatorError):
+    """Ошибка выполнения Coordinator."""

app/src/trading/market_intelligence/coordinator/protocol.py

@@ -0,0 +1,21 @@
+# app/src/trading/market_intelligence/coordinator/protocol.py
+
+from __future__ import annotations
+
+from typing import Protocol
+
+from src.trading.market_intelligence.common.models import (
+    CoordinatorResult,
+    RuntimeResult,
+)
+
+
+class CoordinatorProtocol(Protocol):
+    """Контракт Coordinator Layer."""
+
+    async def coordinate(
+        self,
+        runtime_result: RuntimeResult,
+    ) -> CoordinatorResult:
+        """Согласовать результаты Runtime и вернуть итоговый результат Coordinator."""
+        ...