Handle Zerodha API order rejections gracefully

indian_paper_trading_strategy/engine/broker.py

@@ -373,7 +373,7 @@ class LiveZerodhaBroker(Broker):
         user_id: str | None = None,
         run_id: str | None = None,
     ):
-        from app.services.zerodha_service import KiteTokenError, place_order
+        from app.services.zerodha_service import KiteApiError, KiteTokenError, place_order
 
         if user_id is not None:
             self.user_id = user_id
@@ -402,6 +402,7 @@ class LiveZerodhaBroker(Broker):
         session = self._session()
         tradingsymbol, exchange = self._normalize_symbol(symbol)
         tag = self._make_tag(logical_time, symbol, side)
+        rejected_timestamp = _format_utc_ts(logical_time or datetime.utcnow().replace(tzinfo=timezone.utc))
 
         try:
             placed = place_order(
@@ -420,6 +421,31 @@ class LiveZerodhaBroker(Broker):
             )
         except KiteTokenError as exc:
             self._raise_auth_expired(exc)
+        except KiteApiError as exc:
+            return {
+                "id": _deterministic_id(
+                    "live_rej",
+                    [
+                        symbol,
+                        side,
+                        _stable_num(quantity),
+                        _stable_num(requested_price or 0.0),
+                        getattr(exc, "error_type", "kite_error"),
+                    ],
+                ),
+                "symbol": symbol,
+                "side": side,
+                "qty": qty,
+                "requested_qty": qty,
+                "filled_qty": 0,
+                "price": float(requested_price or 0.0),
+                "requested_price": float(requested_price or 0.0),
+                "average_price": 0.0,
+                "status": "REJECTED",
+                "timestamp": rejected_timestamp,
+                "status_message": getattr(exc, "message", str(exc)),
+                "error_type": getattr(exc, "error_type", None),
+            }
 
         order_id = placed.get("order_id")
         if not order_id: