fix: Vite type declaration, non-idempotent retry, hardcoded test IP

- Add frontend/src/vite-env.d.ts (reference vite/client) to fix vue-tsc build
- Restrict axios-retry to GET/HEAD/OPTIONS only (avoid replaying mutations)
- Convert test_upstream.py to accept URL via CLI args instead of hardcoded IP

backend/test_upstream.py

@@ -6,11 +6,18 @@ from app.services.upstream_client import UpstreamClient
 logging.basicConfig(level=logging.DEBUG)
 
 def main():
+    # Usage: python test_upstream.py <base_url> [api_prefix] [auth_type] [token]
+    # Example: python test_upstream.py http://localhost:8000 "" bearer "sk-xxx"
+    import sys
+    base_url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8000"
+    api_prefix = sys.argv[2] if len(sys.argv) > 2 else ""
+    auth_type = sys.argv[3] if len(sys.argv) > 3 else "bearer"
+    token = sys.argv[4] if len(sys.argv) > 4 else ""
     with UpstreamClient(
-        base_url="http://170.106.100.210:55555",
-        api_prefix="",
-        auth_type="bearer",
-        auth_config={"token": ""},  # We don't have token, but /api/group/ in some new-api may be open, or fail with 401
+        base_url=base_url,
+        api_prefix=api_prefix,
+        auth_type=auth_type,
+        auth_config={"token": token},
         timeout=10.0,
     ) as client:
         try: