read
suspend fun readFeatureTile(content: GpkgContent, z: Int, x: Int, y: Int, sector: Sector? = null): List<ERROR CLASS: Symbol not found for Pair<mil/nga/sf/Geometry, kotlin/String?>>
Read the cached features in tile (z, x, y)'s region via the RTree bbox query. The flat store has no per-tile rows, so this returns every feature intersecting the tile bounds; ww_feature_coverage is what records whether the tile was actually fetched.