Switch unit tests to mock child_process.execFile and assert argv structure instead of a single shell command string. Add helpers (lastCallArgv, expectMetadataArg) and expand coverage to catch the #171 quote-regression, validate sanitization of invisible/whitespace/null chars, ensure no shell-quoting is introduced, and cover all format branches (m4b/mp3/flac). Add a new integration test suite that runs real ffmpeg/ffprobe (skips if binaries missing) to verify metadata round-trips byte-for-byte. Update metadata-tagger implementation (binary change) to use the argv-style spawn/execFile path expected by the tests.
Include series and seriesPart metadata when tagging audio files. For m4b output the code uses show and episode_id; for mp3 and flac it writes SERIES and SERIES-PART. Adds unit tests verifying tag output for .m4b, .mp3, and .flac and that tags are omitted when fields are absent.
improve container startup for rootless Podman, plus related refactors and tests. Key changes:
- Add/modify Audiobookshelf-related code and wiring (src/lib/services/audiobookshelf/api.ts, library service refs) and update documentation TABLEOFCONTENTS to reference ABS implementation.
- Detect user namespace in docker/unified app-start.sh and redis-start.sh and skip gosu when running in rootless Podman to preserve UID mapping; improve startup logging and verification.
- Add utility/service files (auth-token-cache.service.ts, credential-migration.service.ts, cleanup-helpers.ts) and corresponding tests; update chapter-merger and metadata-tagger utilities/tests.
- Update many admin/auth API routes and tests to reflect changes in settings and integrations.
- Remove large AI agent and Audiobookshelf implementation guide docs (AGENTS.md and the implementation guide) and add README note about AI-assisted workflow.
These changes enable Audiobookshelf backend mode, improve compatibility with rootless container runtimes, and include cleanup/refactor work and unit tests.
Introduced a Vitest-based backend unit testing framework with supporting scripts, helpers, and GitHub Actions integration. Refactored the admin settings page to a modular architecture, splitting monolithic logic into feature-specific tabs and hooks for improved maintainability and testability. Updated documentation to reflect the new testing setup and settings architecture, and added new dependencies for testing utilities.
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