fix: resolve Google login hydration mismatch and dynamic env load

tests/test_google_auth.py

@@ -0,0 +1,23 @@
+import pytest
+import services.auth_service as auth_svc
+from services.auth_service import get_or_create_google_user
+
+def test_google_user_creation(monkeypatch):
+    # Enable database for testing
+    monkeypatch.setattr(auth_svc, "USE_DATABASE", True)
+    monkeypatch.setattr(auth_svc, "DATABASE_AVAILABLE", True)
+
+    email = "google_test_user@example.com"
+    name = "Google User"
+    avatar_url = "https://example.com/avatar.png"
+
+    # Create the user
+    user = get_or_create_google_user(email=email, name=name, avatar_url=avatar_url)
+    assert user is not None
+    assert user.email == email
+    assert user.name == name
+    assert user.avatar_url == avatar_url
+
+    # Retrieve again
+    user_again = get_or_create_google_user(email=email, name=name, avatar_url="https://new-avatar.com")
+    assert user_again.id == user.id