- Rename @kb/core, @kb/dashboard, @kb/engine to @fusion/* namespace
- Update all import statements across 143+ files to use new package names
- Update workspace dependencies and root package.json references
- Fix bundler configurations (tsup, vite) for new package names
- Update test files and fix typecheck issues
- Add changeset file documenting the package rename
- Add verified POST /api/github/webhooks endpoint with signature verification
- Implement GitHub App installation token authentication for API calls
- Add webhook handlers for pull_request, issues, and issue_comment events
- Support multi-task resource matching by parsed badge URL
- Retire live GitHub polling service in favor of push-based updates
- Add comprehensive webhook integration and unit tests
- Keep 5-minute REST refresh endpoints as fallback
