Phase 1: Core hex engine, Leaflet overlay, terrain painting UI
- core/: Pure TS hex engine (axial coords, hex grid, terrain types,
edge connectivity with constraint solver, HexMap state model)
- src/map/: Leaflet L.CRS.Simple map init, Canvas-based hex overlay
layer (L.GridLayer), click/edge interaction detection
- src/ui/: Sidebar with toolbar (Select/Paint/Feature modes),
terrain picker, hex inspector, map settings (hex size, grid, opacity)
- pipeline/: Tile pyramid generator (sharp, from source image)
- tests/: 32 passing tests for coords, hex-grid, edge-connectivity
- Uses Kiepenkerl tiles (symlinked) for development
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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