chore(release): bump version to v2026.4.358 and update changelog}
- Bump package version from v2026.4.354 to v2026.4.358
- Add changelog entry for SPA index.html pre-read bugfix in Electron .asar archives
- Add "Dual GUI: Angular + React" feature documentation to README
- Route Electron iframe to correct frontend path based on user preference (ng/react)
- Update p3x-redis-ui-material dependency to ^2026.4.369
- Update p3x-redis-ui-server dependency to ^2026.4.319
- Update build version strings across all markdown files
- Update yarn.lock with new transitive dependencies (emotion, dnd-kit, babel)