Compress baked PNGs and tighten XPbr shadows with URP quality tweaks.

Add png_compress to the model pipeline and update TownSquare lighting plus MaleExplorer/plaza textures.

Co-authored-by: Cursor <cursoragent@cursor.com>

Tools/model_tools/model_bake.py

@@ -8,6 +8,7 @@ import os
 from bl_bake import output_stem
 from bl_decimate import model_format
 from mt_run import HERE, find_blender, run_blender_script
+from png_compress import compress_pngs
 
 
 def main():
@@ -38,6 +39,9 @@ def main():
                            [args.high, args.low, outdir, str(args.size),
                             ray, str(args.samples)],
                            blender_args=("-t", "1"))
+    compress_pngs(
+        os.path.join(outdir, fname) for fname in (s.get("outputs") or {}).values()
+    )
     print("== %s（高 %d 面 / 低 %d 面，射线距离 %.4f）-> %s" %
           (s["stem"], s["high_tris"], s["low_tris"], s["ray_distance"], outdir))
     for name, fname in s["outputs"].items():