Release 6.4.1

[6.4.1] - 2026-04-04

Fixed

• Fixed a manual Forge regression where Grimmory EPUB selections could be sent with the display label Grimmory instead of the internal Booklore source key, causing Unknown text source: 'Grimmory' failures.
• Improved Storyteller transcript-ingest diagnostics so title-directory misses now log the resolved STORYTELLER_ASSETS_DIR/assets search root, candidate titles, and a short sample of available asset directories before falling back to SMIL or Whisper.