chore: bump version to v2026.4.342 and update changelog}
- Bump package version from v2026.4.340 to v2026.4.342 - Update p3x-redis-ui-material dependency from ^2026.4.338 to ^2026.4.340 - Update p3x-redis-ui-server dependency from ^2026.4.305 to ^2026.4.306 - Add Real-Time Monitoring Dashboard section to README (live metrics, uPlot charts, slow log, client list, memory top keys) - Add RediSearch Full-Text Search section to README (search page, index management, module-aware detection) - Update Key Export/Import docs with search-aware export and hamburger menu - Add uplot ^1.6.32 as new dependency via p3x-redis-ui-material - Upgrade @codemirror/view from ^6.40.0 to ^6.41.0 in dependency tree - Add changelog entry for v2026.4.342 - Update build version footer across all documentation files