The zlib directory was incorrectly listed as "unused" in .gitignore, but it's required by app.pro for Windows builds. Added exception patterns for third-party libraries. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Analysis of .pro files shows these are never referenced: - dx9_sdk/ - DirectX 9 SDK (completely unused) - xna/ - XNA framework (completely unused) - zlib/ - Qt's internal QtZlib is used instead Active libraries retained: - devil_sdk/ - Image loading for previews - xbox_sdk/ - Xbox 360 format decompression - oodle_lib/ - Dynamic compression loading Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>