b6bd66cd9e
Completely reworked feature placement UX: - Tile palette in sidebar shows 7 pattern types (dead-end, straight, wide curve, sharp bend, Y-split, Y-wide, crossroads) for each linear terrain (road, river, coastline) with small hex previews - Click pattern to select, click hex to place — no more edge-clicking - Q/E keys or scroll wheel to rotate selected pattern before placing - Each placed feature has independent rotation controls (arrows) and remove button in the hex inspector panel - Edge constraint enforcement still runs automatically on placement Also added: core/tile-patterns.ts with canonical pattern definitions and rotation math (accounting for symmetry). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>