fix(auth): call get_settings() inside verify_api_key — avoid stale module-level settings reference

app/api/dependencies.py

@@ -1,13 +1,11 @@
 from fastapi import Header, HTTPException
 from typing import Optional
-from app.core.config import get_settings
-
-settings = get_settings()
-
+from app.core.config import get_settings   # keep import, remove module-level call
+import logging
 
 def verify_api_key(x_api_key: Optional[str] = Header(default=None)) -> None:
+    settings = get_settings()              # ← call inside function
     if not settings.api_key:
-        import logging
         logging.getLogger(__name__).warning(
             "WARNING: API_KEY is not set — all endpoints are publicly accessible. "
             "Set API_KEY in your .env or environment to enable authentication."