merge master

The TGA run length fix landed with new commits; keep the combined output
buffer size (a packet header per 128 pixels of a row, plus the extension
area).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ljnxm1Qjrocq1izGajLx8J

Author: matmen