Add DEMO feature to the project

gateway/app/middleware/auth.py

@@ -34,7 +34,9 @@ PUBLIC_ROUTES = [
     "/api/v1/auth/refresh",
     "/api/v1/auth/verify",
     "/api/v1/nominatim/search",
-    "/api/v1/plans"
+    "/api/v1/plans",
+    "/api/v1/demo/accounts",
+    "/api/v1/demo/session/create"
 ]
 
 class AuthMiddleware(BaseHTTPMiddleware):
@@ -57,10 +59,20 @@ class AuthMiddleware(BaseHTTPMiddleware):
         if self._is_public_route(request.url.path):
             return await call_next(request)
 
+        # ✅ Check if demo middleware already set user context
+        demo_session_header = request.headers.get("X-Demo-Session-Id")
+        logger.info(f"Auth check - path: {request.url.path}, demo_header: {demo_session_header}, has_demo_state: {hasattr(request.state, 'is_demo_session')}")
+
+        if hasattr(request.state, "is_demo_session") and request.state.is_demo_session:
+            if hasattr(request.state, "user") and request.state.user:
+                logger.info(f"✅ Demo session authenticated for route: {request.url.path}")
+                # Demo middleware already validated and set user context, pass through
+                return await call_next(request)
+
         # ✅ STEP 1: Extract and validate JWT token
         token = self._extract_token(request)
         if not token:
-            logger.warning(f"Missing token for protected route: {request.url.path}")
+            logger.warning(f"❌ Missing token for protected route: {request.url.path}, demo_header: {demo_session_header}")
             return JSONResponse(
                 status_code=401,
                 content={"detail": "Authentication required"}