schedulePrefetchGlStencilOsmTilesForCustomMask

open override fun schedulePrefetchGlStencilOsmTilesForCustomMask(coords: List<TileCoord>)

Unconditionally queues coords as GL-stencil OSM prefetch keys for a custom stencil mask (no existing-mesh check, unlike schedulePrefetchGlStencilMaskTilesForWeatherRender) and kicks off runGlStencilPrefetchWorker.