fix: Poprawka składni @limiter.request_filter dla Flask-Limiter 4.0

app.py

@@ -246,6 +246,14 @@ try:
 except Exception:
     logger.warning("Redis unavailable, rate limiter using memory storage")
 
+limiter = Limiter(
+    app=app,
+    key_func=get_remote_address,
+    default_limits=["200 per day", "50 per hour"],
+    storage_uri="redis://localhost:6379/0" if _redis_available else "memory://"
+)
+
+@limiter.request_filter
 def is_admin_exempt():
     """Exempt logged-in admins from rate limiting."""
     from flask_login import current_user
@@ -254,14 +262,6 @@ def is_admin_exempt():
     except Exception:
         return False
 
-limiter = Limiter(
-    app=app,
-    key_func=get_remote_address,
-    default_limits=["200 per day", "50 per hour"],
-    storage_uri="redis://localhost:6379/0" if _redis_available else "memory://",
-    request_filter=is_admin_exempt  # Admins are exempt from rate limits
-)
-
 # Initialize database
 init_db()