feat: Implement advanced tile mapping system with abstract deck
- Created TileDefinitions.js with centralized tile definitions
- Implemented abstract deck system (8 rooms 4x4, 4 rooms 4x6, 12 corridors, 10 L-shapes, 8 T-junctions)
- Added connection validation (type compatibility, exit direction, walkability alignment)
- Implemented corridor orientation filtering (EW/NS matching)
- Added exhaustive L/T variant selection with random choice
- Updated corridor definitions with EW and NS orientations
- Fixed ASSETS.tiles references throughout main.js
- Known issue: L/T offset alignment needs further debugging
marti
c8cc35772f