fix comment

app.py

@@ -782,8 +782,8 @@ def serve_file(subpath):
     ip_address = request.remote_addr
     user_agent = request.headers.get('User-Agent')
 
-    # skip logging on cache hits or on audio GETs (per your rules)
-    # Log once per real fetch: skip CDN cache requests and HEADs, log GETs (including audio)
+    # Logging: log every client GET (cached or not), but skip CDN prefetches (X-Cache-Request)
+    # and HEAD probes to avoid double-counting.
     do_log = (
         not is_cache_request    # skip if upstream CDN asked us to cache
         and request.method != 'HEAD'