Add custom data table to Dexie store for user-managed state persistence

[Copilot]

Plan for Adding Custom Data Storage to Hyperbook Store

• Add custom table to Dexie database in packages/markdown/assets/store.js with schema: "id, payload"
• Update export/import functions to handle custom table data (already handled automatically by existing export/import)
• Add documentation to English advanced section (website/en/book/advanced/custom-scripts.md)
• Add documentation to German advanced section (website/de/book/advanced/custom-scripts.md)
• Include JSON data storage example in documentation
• Build and test the changes to ensure everything works correctly
• Add changeset and update versions/CHANGELOGs

Implementation Complete

The custom data storage feature has been successfully added to Hyperbook with proper versioning:

Code Changes

1. Database schema: Added custom: 'id,payload' table to packages/markdown/assets/store.js
2. Export/Import: Custom data is automatically included in the existing hyperbookExport() and hyperbookImport() functions
3. Documentation: Added comprehensive documentation in both English and German versions of the custom-scripts.md file, including:
   • Overview of the Hyperbook Store API
   • Custom data table schema explanation
   • Examples of saving data with store.custom.put()
   • Examples of retrieving data with store.custom.get()
   • Complete working example with initialization and persistence
   • Note about automatic export/import support

Version Updates

• @hyperbook/markdown: 0.39.0 → 0.40.0
• hyperbook: 0.65.0 → 0.66.0
• hyperbook-studio: 0.41.0 → 0.42.0

Changelog Updates

• Added changeset file .changeset/custom-data-store.md
• Updated CHANGELOG.md for @hyperbook/markdown, hyperbook, and hyperbook-studio
• Updated website changelog at website/en/book/changelog.md with v0.66.0 entry

All tests pass and the website builds successfully with the new feature.

Original prompt

A user should be able to hook into the hyperbook store and store and retrieve custom data. Therefore you should add a dexie table for custom with: "id, payload". Also add documentation in the advance section for scripts and mention that you can use this api to save and restore data. Also add an example on how to use this api with json data.

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Project	Deployment	Preview	Comments	Updated (UTC)
hyperbook-4fwa	Ready	Preview	Comment	Nov 12, 2025 9:22am

[mikebarkmin]

@copilot Update the versions of markdown, hyperbook and hyperbook-studio, add a changeset and update the changelog.md. Be sure to use the correct version. I might have missed documenting the last ones.

[Copilot]

@copilot Update the versions of markdown, hyperbook and hyperbook-studio, add a changeset and update the changelog.md. Be sure to use the correct version. I might have missed documenting the last ones...

Done! Updated versions and added changeset (commit 4c4375c):

Version bumps:

• @hyperbook/markdown: 0.39.0 → 0.40.0
• hyperbook: 0.65.0 → 0.66.0
• hyperbook-studio: 0.41.0 → 0.42.0

Files updated:

• Added .changeset/custom-data-store.md
• Updated CHANGELOG.md for markdown, hyperbook, and hyperbook-studio packages
• Updated website/en/book/changelog.md with v0.66.0 entry

All builds and tests pass.