GET /map, GET /map/chunk, POST /map/render and GET /map/live, stamped and
forwarded like the reward routes (PLAN.md §30.2). Nothing is stored: the
picture passes through in 512 KiB slices and positions are never filed
(D111). A test asserts a base64 slice plus its envelope fits the game
link's 1 MiB line cap on the way back.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY
