Warnings: facing indicator tests use Godot-normalized rotation range (-PI, PI] instead of raw addition (SW/W/NW in test_rendering, West in test_client_p3). Suggestions: cache font in world_radial _draw(), fix docstring on deactivate_insert() trigger, document tile-coordinate system on _eval_player_near (D-066), add public reset_facing_state() to InputMapper (D-030 testability). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>