Add recommended vehicle check to car view access

Cars that were recommended to the user (via vehicle request with 1CC payment)
should be accessible without additional CC payment.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/app/api/cc.py

@@ -8,7 +8,7 @@ import stripe
 import logging
 
 from ..database import get_db
-from ..models import User, Car, CarView, PerformanceCheckView, ChargeHistory, CarPerformanceCheck, CCPackage, DEFAULT_CC_PACKAGES
+from ..models import User, Car, CarView, PerformanceCheckView, ChargeHistory, CarPerformanceCheck, CCPackage, DEFAULT_CC_PACKAGES, VehicleRequest, RequestVehicle
 from ..models.settings import SystemSettings
 from ..models.user import PaymentSettings
 from ..schemas import UserResponse, CarViewResponse, PurchaseViewRequest
@@ -135,13 +135,27 @@ def check_car_view(
     db: Session = Depends(get_db)
 ):
     """Check if user has purchased view access for a specific car"""
+    # Check if user purchased view access
     existing_view = db.query(CarView).filter(
         CarView.user_id == current_user.id,
         CarView.car_id == car_id
     ).first()
 
+    if existing_view:
+        return {
+            "has_access": True,
+            "cc_balance": current_user.cc_balance or 0
+        }
+
+    # Check if this car was recommended to the user (paid 1 CC for recommendation)
+    recommended_vehicle = db.query(RequestVehicle).join(VehicleRequest).filter(
+        VehicleRequest.user_id == current_user.id,
+        RequestVehicle.car_id == car_id,
+        RequestVehicle.is_approved == True
+    ).first()
+
     return {
-        "has_access": existing_view is not None,
+        "has_access": recommended_vehicle is not None,
         "cc_balance": current_user.cc_balance or 0
     }