Fix and expand tests: 63 tests passing, covers all core modules
Remove tests/ from .gitignore (was accidentally excluded).
- test_ripper.py: rewrite for current API (_parse_cddb_lines,
_extract_tracks, _rename_files, _clean_input); fix default quality
- test_organizer.py: update filename assertions (spaces→underscores);
add TestSanitizeFilename, TestCheckDiscCounts, in-place mode
- test_playlist.py: fix dummy filenames to underscore scheme;
add multi-disc, filename sanitization, EXTINF and fallback tests
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
dschlueter
775f274d02