Beta 4 release

Release v1.0.0-beta.3

Beta 2 release with Web UI

Rewrite README to be concise and accurate

- Made it much briefer (76 lines vs 130)
- Added Interactive Shell as key feature with dedicated section
- Removed encrypted cache section (removed for v1)
- Fixed outdated commands (list -> show, etc)
- Added prominent link to full documentation
- Simplified examples to essentials only
- Made features scannable with emoji icons

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <[email protected]>
Co-Authored-By: Happy <[email protected]>

implement only/except in diff and export

cli ref

this was removed

vault config here

docs

removed this note