Document-Style Outline Redesign and Accurate Recording Resume

🔄 Improvements

• Redesigned the Outline into a clean, document-style layout with a clear 4-level hierarchy (title → section → keyword → bullet) for better readability at scale.
• Added document-native callouts for notes and quotes, plus subtle transcription blocks with inline timestamps for smoother scanning.
• Improved highlight behavior in Outline: more subtle emphasis and correct text colors in dark mode.
• Theme switching now affects only the mind map canvas (branches, roots, connections). The rest of the interface stays visually stable, avoiding full-UI color shifts.

✨ New Features

• Quote button now appears on the branch immediately after clicking “Quote”, providing instant visual feedback.
  https://youtu.be/fdLAgpjsGpE

🛠 Fixes

• Fixed: Recording now correctly resumes from the actual audio length after pause or page reload.
• Fixed: Silent gaps are no longer inserted between recording sessions.
• Fixed: Live transcription timing offset is preserved after restart (correct Deepgram first-packet timing).
• Fixed: Improved type safety in Yjs snapshot updates, reducing risk of runtime crashes.

And other improvements