feat(capi): render a loose MLT tile from bytes (tile57_render_mlt_tile)#23
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Rendering could only paint tiles owned by an open archive (tile57_chart_tile_surface). Add its archive-less twin: paint a caller-supplied MLT tile with no chart open — for a host that fetched a tile over HTTP from a tile server and wants it drawn locally. Same world-space tagged draw calls, per-tile decluttering, and the embedded colour profile + symbol catalogue. Handle-less process-global symbol-store caches (sharedStore, per palette) mirror sharedColors; renderMltTileSurface reuses the exact mlt.decode + scene.replayTile path as Chart.renderSurfaceTile. An undecodable tile paints nothing (still TILE57_OK).
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Rendering could only paint tiles owned by an open archive (tile57_chart_tile_surface). Add its archive-less twin: paint a caller-supplied MLT tile with no chart open — for a host that fetched a tile over HTTP from a tile server and wants it drawn locally. Same world-space tagged draw calls, per-tile decluttering, and the embedded colour profile + symbol catalogue.
Handle-less process-global symbol-store caches (sharedStore, per palette) mirror sharedColors; renderMltTileSurface reuses the exact mlt.decode + scene.replayTile path as Chart.renderSurfaceTile. An undecodable tile paints nothing (still TILE57_OK).