Fog entity cognitive delay rendering (D-059/D-060): sonar-style sound
pings (3 concentric rings, 1.5s fade), unrecognized grey blobs with
breathing pulse, D-033 color transition at 50% recognition progress,
±0.5 tile position drift. FogEntities node at z:950 between fog
shader and InsertOverlay.
Protocol v7 bump to match server PR #23 (pending_recognitions field).
Wires dialogue box and fog entities into game loop with mock test data.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>