Stage 03.3 - exchangeInfo and symbol validation

app/src/core/config.py

@@ -48,5 +48,5 @@ def load_settings() -> Settings:
         exchange_api_secret=os.getenv("EXCHANGE_API_SECRET", "").strip(),
         exchange_timeout_sec=_parse_int(os.getenv("EXCHANGE_TIMEOUT_SEC", "10"), 10),
         exchange_testnet=_parse_bool(os.getenv("EXCHANGE_TESTNET", "false")),
-        default_symbol=os.getenv("DEFAULT_SYMBOL", "BTCUSDT").strip() or "BTCUSDT",
+        default_symbol=os.getenv("DEFAULT_SYMBOL", "BTC/USD_LEVERAGE").strip() or "BTC/USD_LEVERAGE",
     )

app/src/core/system_status.py

@@ -25,20 +25,33 @@ class SystemSnapshot:
     timezone_name: str
     exchange_enabled: bool
     exchange_name: str
+    default_symbol: str
+    symbol_validation_message: str
     components: list[ComponentStatus]
 
 
 def get_system_snapshot() -> SystemSnapshot:
     settings = load_settings()
     exchange_service = ExchangeService()
+
+    try:
+        symbol_validation = exchange_service.validate_symbol(settings.default_symbol)
+    except Exception as exc:
+        symbol_validation = None
+        symbol_validation_message = f"Не удалось проверить символ: {exc}"
+    else:
+        symbol_validation_message = symbol_validation.message
+
     exchange_health = exchange_service.get_health()
 
     if exchange_health.ok and exchange_health.mode == "mock":
         exchange_state = "🟡 mock mode"
     elif exchange_health.ok:
-        exchange_state = "🟢 OK"
+        exchange_state = "🟢 API OK"
     else:
-        exchange_state = "🔴 attention"
+        exchange_state = "🔴 ошибка"
+
+    symbol_state = "🟢 OK" if symbol_validation and symbol_validation.is_valid else "🔴 ошибка"
 
     components = [
         ComponentStatus(
@@ -56,6 +69,11 @@ def get_system_snapshot() -> SystemSnapshot:
             state=exchange_state,
             details=exchange_health.message,
         ),
+        ComponentStatus(
+            name="Символ",
+            state=symbol_state,
+            details=symbol_validation_message,
+        ),
         ComponentStatus(
             name="База данных",
             state="🟡 не подключена",
@@ -72,6 +90,8 @@ def get_system_snapshot() -> SystemSnapshot:
         timezone_name=settings.tz,
         exchange_enabled=settings.exchange_enabled,
         exchange_name=settings.exchange_name,
+        default_symbol=settings.default_symbol,
+        symbol_validation_message=symbol_validation_message,
         components=components,
     )
 
@@ -99,7 +119,8 @@ def build_system_text() -> str:
         f"- os: {snapshot.os_name}\n"
         f"- timezone: {snapshot.timezone_name}\n"
         f"- exchange_enabled: {snapshot.exchange_enabled}\n"
-        f"- exchange_name: {snapshot.exchange_name}\n\n"
+        f"- exchange_name: {snapshot.exchange_name}\n"
+        f"- default_symbol: {snapshot.default_symbol}\n\n"
         "<b>Справка</b>\n"
         "/start — стартовый экран\n"
         "/menu — показать меню\n"