Debug: Add test response for PlaybackInfo matching

Testing if path_regexp works by returning debug response
instead of proxying. This will show:
1. If the path is matched correctly
2. What User-Agent header is received

Once confirmed working, uncomment reverse_proxy lines.

docker/jellyfin-xbox-proxy/Caddyfile

@@ -2,19 +2,33 @@
 # Routes Xbox PlaybackInfo to Python filter, everything else to Jellyfin directly
 
 :8096 {
+    # Debug: Log all requests
+    log {
+        output stdout
+        format json
+        level DEBUG
+    }
+
     # Xbox PlaybackInfo requests with Xbox in User-Agent go to Python filter
     @xbox_playback {
-        path_regexp playback ^/Users/.*/Items/.*/PlaybackInfo$
+        path_regexp ^/Users/.*/Items/.*/PlaybackInfo$
         header User-Agent *Xbox*
     }
 
-    handle @xbox_playback {
-        reverse_proxy xbox-filter:8096 {
-            header_up Host {host}
-            header_up X-Real-IP {remote_host}
-            header_up X-Forwarded-For {remote_host}
-            header_up X-Forwarded-Proto {scheme}
-        }
+    # Test: Route ALL PlaybackInfo requests to filter first (ignore User-Agent)
+    @all_playback {
+        path_regexp ^/Users/.*/Items/.*/PlaybackInfo$
+    }
+
+    handle @all_playback {
+        respond "Matched PlaybackInfo - User-Agent: {http.request.header.User-Agent}" 200
+        # Uncomment when working:
+        # reverse_proxy xbox-filter:8096 {
+        #     header_up Host {host}
+        #     header_up X-Real-IP {remote_host}
+        #     header_up X-Forwarded-For {remote_host}
+        #     header_up X-Forwarded-Proto {scheme}
+        # }
     }
 
     # All other requests go directly to Jellyfin
@@ -34,11 +48,4 @@
 
     # Enable compression
     encode gzip
-
-    # Access logging
-    log {
-        output stdout
-        format console
-        level INFO
-    }
 }