fix: translate final Romanian comment in items.py to English

backend/routers/items.py

@@ -69,7 +69,7 @@ async def extract_label(
     """[C-01] Extract label from image — only for authenticated users. [H-02] Rate limit: 10 req/min per IP."""
     from ..ai_vision import extract_label_info
 
-    # [SECURITY FIX H-03] Validare tip MIME și dimensiune maximă
+    # [SECURITY FIX H-03] Validate MIME type and maximum size
     if file.content_type not in _ALLOWED_IMAGE_TYPES:
         raise HTTPException(
             status_code=status.HTTP_415_UNSUPPORTED_MEDIA_TYPE,