Improve docs and security defaults

src/server/api/maintenance.py

@@ -1,4 +1,10 @@
-"""Maintenance and system management API endpoints."""
+"""Maintenance API endpoints for system housekeeping and diagnostics.
+
+This module exposes cleanup routines, system statistics, maintenance
+operations, and health reporting endpoints that rely on the shared system
+utilities and monitoring services. The routes allow administrators to
+prune logs, inspect disk usage, vacuum or analyze the database, and gather
+holistic health metrics for AniWorld deployments."""
 
 import logging
 from typing import Any, Dict