fix(translate): French error messages and update mock users for quota checks

tests/test_translation_metadata_integration.py

@@ -5,13 +5,28 @@ from unittest.mock import patch, AsyncMock, MagicMock
 from main import app
 from routes.translate_routes import get_authenticated_user
 
-client = TestClient(app)
+@pytest.fixture()
+def client(monkeypatch):
+    """TestClient with rate limiting and quota reservation bypassed for metadata tests."""
+    from middleware.rate_limiting import RateLimitMiddleware
+
+    async def _dispatch(self, request, call_next):
+        return await call_next(request)
+
+    monkeypatch.setattr(RateLimitMiddleware, "dispatch", _dispatch)
+    monkeypatch.setattr("routes.translate_routes.reserve_translation_quota", lambda user_id: True)
+    from main import app
+
+    return TestClient(app)
 
 
 class MockUser:
     def __init__(self, user_id="user_123"):
         self.id = user_id
         self.plan = "free"
+        self.docs_translated_this_month = 0
+        self.pages_translated_this_month = 0
+        self.extra_credits = 0
 
 
 async def mock_auth():
@@ -19,7 +34,7 @@ async def mock_auth():
 
 
 @pytest.mark.asyncio
-async def test_translate_endpoint_triggers_tracking():
+async def test_translate_endpoint_triggers_tracking(client):
     app.dependency_overrides[get_authenticated_user] = mock_auth
 
     with patch(
@@ -70,7 +85,7 @@ async def test_translate_endpoint_triggers_tracking():
 
 
 @pytest.mark.asyncio
-async def test_translate_endpoint_handles_hash_failure():
+async def test_translate_endpoint_handles_hash_failure(client):
     app.dependency_overrides[get_authenticated_user] = mock_auth
 
     with patch("routes.translate_routes.file_validator.validate_async") as mock_val: