fix: optimize compliance scan performance and improve error handling

- Refactor scan_compliance to eliminate N+1 queries using joinedload and batch loading
- Add try-except wrapper in compliance scan API endpoint
- Improve frontend axios error interceptor to display detail/message/timeout errors
- Update CORS config and nginx for domain deployment

backend/app/main.py

@@ -39,19 +39,9 @@ async def log_requests(request: Request, call_next):
         return response
 
     from app.core.database import SessionLocal
+    db = None
     try:
         db = SessionLocal()
-        body_bytes = b""
-        if request.method in ["POST", "PUT", "PATCH"]:
-            try:
-                body_bytes = await request.body()
-                # Re-assign body for downstream
-                async def receive():
-                    return {"type": "http.request", "body": body_bytes}
-                request._receive = receive
-            except Exception:
-                pass
-
         log_entry = log_models.OperationLog(
             module=request.url.path.split("/")[2] if len(request.url.path.split("/")) > 2 else "",
             action=request.url.path,
@@ -66,7 +56,8 @@ async def log_requests(request: Request, call_next):
     except Exception:
         pass
     finally:
-        db.close()
+        if db:
+            db.close()
 
     return response