fix: detect PNG vs BMP format in dungeon tiles

361 of 614 tile files have .bmp extension but are actually PNG.
Now detects magic bytes and sets correct MIME type per tile.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-04-08 15:18:09 +02:00
parent e2982e34b5
commit 06f326cce0

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