Stage 05.1 - order draft flow

app/src/trading/orders/models.py

@@ -0,0 +1,12 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+
+@dataclass(slots=True)
+class OrderDraft:
+    symbol: str
+    side: str
+    order_type: str
+    quantity: str
+    status: str = "draft"