- Introduced a new StorageProvider interface to abstract storage operations.
- Implemented createProvider function to create a filesystem-based storage provider.
- Updated commands to use the new provider for reading, writing, and managing pages.
- Refactored IndexManager and LogManager to work with the StorageProvider.
- Modified resolveWiki function to return a context with the provider.
- Added requireFilesystem utility to enforce filesystem backend requirements in commands.
- Updated tests to validate the new storage provider functionality and ensure compatibility.
Add bookkeeping and git operations:
- wiki index show/add/remove with auto-section detection
- wiki log show/append with --last and --type filters
- wiki commit with auto-message from last log entry
- wiki history with per-file support, wiki diff
- IndexManager and LogManager in src/lib/
- 22 new tests (68 total)
