popertots
a5154f73dd
docs(pathfinding): add documentation and remove unused async infrastructure
- Add comprehensive module documentation explaining tier architecture
- Add TileMap documentation explaining design choices (FxHashMap, packed data)
- Remove unused async pathfinding code (StandableTileSnapshot, spawn_async_path_task)
- Remove unused imports (check_ready, rayon, StdHashMap)
- Fix unused variable warnings with underscore prefixes
- Add #[allow(dead_code)] for intentionally unused fields