Sprint 2 rendering pipeline: tiles (#129), fog (#131), camera (#116).
- tile_renderer.gd: programmatic TileSet with floor/wall/door/object
placeholder tiles, renders from snapshot tile data
- fog_renderer.gd: TileMapLayer overlay with three visibility states
(visible/fog-edge/hidden), computed from visible_positions data
- Camera2D: smoothing enabled (speed 6.0), 2x zoom, locked to player
- game_state.gd: stores visible_tiles and visible_positions from snapshots
- sim_bridge.gd: test data with 8x8 room, corridor, and Manhattan
distance visibility for development without server
- Scene render order: Tiles -> FogOverlay -> Entities
- Background clear color set to near-black for unexplored areas
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.6
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