Kyle Isom e106d1ab76 Add notebook zip backup export ...

- BackupExporter: exports notebook as .engpad.zip containing
  notebook.json (metadata) and pages/NNN.json (strokes as JSON
  float arrays). Uses Dispatchers.IO for file I/O.
- Added "Export backup" to notebook overflow menu in library
- PdfExporter.sanitize changed from private to internal for reuse
- Shares via FileProvider + ACTION_SEND with application/zip MIME type

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-24 20:46:42 -07:00

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main

Add notebook zip backup export

2026-03-24 20:46:42 -07:00

test/kotlin/net/metacircular/engpad

Implement Phase 6: undo/redo with command pattern

2026-03-24 14:40:24 -07:00