feat: add relay-backed web radar sharing

- publish radar state/bootstrap snapshots to an HTTP relay
- add shared waypoint sync through relay APIs and SSE updates
- add remote Caddy/deploy tooling and mock relay push script
- add static POIs, topo-tile availability checks, and tile-load throttling
- add WASM 3D map engine and Python map data-prep pipeline
- update worn clothing reads to include slot metadata
- add grid controls, render perf HUD, and marker/label scaling tweaks
- remove embedded map resource generation in favor of disk/relay maps

TODO.md

@@ -18,4 +18,7 @@
 - Player detail popover on marker click (worn items, health, distance)
 - Minimap inset (fixed position, independent zoom level)
 - Keyboard shortcuts: G=grid, T=topo, C=combat, P=POIs
-- Route/waypoint drawing tool (manual overlay path)
+- Route/waypoint drawing tool (manual overlay path)
+
+## Bullet trails
+- change bullet trails to be bright red boxes bright pure blue trails