Required by the v0.5.0 schema-v3 + autotile work shipping in
sporel-lib-core.maps. No behavioural change in render itself; the
new maps surface (vertex-painted layers, override sublayer, render-
opt caches) is consumed via existing draw_map_pre/post_entities
calls which are backwards-compatible.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Resolves audit I3 (RTS-Tech-Demo-Audit 2026-05-14). render requires
maps for tilemap rendering; dep was previously transitively resolved
via module-manifest. Now explicit per Composer-Pattern §3.3.