fixing project id env variable loading

src/auth.py

@@ -506,16 +506,19 @@ def onboard_user(creds, project_id):
 def get_user_project_id(creds):
     """Gets the user's project ID matching gemini-cli setupUser logic."""
     global user_project_id
-    if user_project_id:
-        return user_project_id
-
-    # Priority 1: Check environment variable first
+    
+    # Priority 1: Check environment variable first (always check, even if user_project_id is set)
     env_project_id = os.getenv("GOOGLE_CLOUD_PROJECT")
     if env_project_id:
         logging.info(f"Using project ID from GOOGLE_CLOUD_PROJECT environment variable: {env_project_id}")
         user_project_id = env_project_id
         save_credentials(creds, user_project_id)
         return user_project_id
+    
+    # If we already have a cached project_id and no env var override, use it
+    if user_project_id:
+        logging.info(f"Using cached project ID: {user_project_id}")
+        return user_project_id
 
     # Priority 2: Check cached project ID in credential file
     if os.path.exists(CREDENTIAL_FILE):

src/main.py

@@ -1,10 +1,21 @@
 import logging
+import os
 from fastapi import FastAPI, Request, Response
 from fastapi.middleware.cors import CORSMiddleware
 from .gemini_routes import router as gemini_router
 from .openai_routes import router as openai_router
 from .auth import get_credentials, get_user_project_id, onboard_user
 
+# Load environment variables from .env file
+try:
+    from dotenv import load_dotenv
+    load_dotenv()
+    logging.info("Environment variables loaded from .env file")
+except ImportError:
+    logging.warning("python-dotenv not installed, .env file will not be loaded automatically")
+except Exception as e:
+    logging.warning(f"Could not load .env file: {e}")
+
 # Configure logging
 logging.basicConfig(
     level=logging.INFO,