Implements hybrid extraction: when a package has multiple episodes with
multi-part archives, completed archive sets are extracted immediately
while the rest of the package continues downloading. Uses the existing
hybridExtract setting (already in UI/types/storage).
Key changes:
- Export findArchiveCandidates/pathSetKey from extractor.ts
- Add onlyArchives/skipPostCleanup options to ExtractOptions
- Add findReadyArchiveSets to identify complete archive sets
- Add runHybridExtraction for incremental extraction passes
- Requeue logic in runPackagePostProcessing for new completions
- Resume state preserved across hybrid passes (no premature clear)
- Guard against extracting incomplete multi-part archives
- Correct abort/toggle handling during hybrid extraction
- Package toggle now also aborts active post-processing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
