chore(release): bump version to v2026.4.614 and update changelog}
- Bump version from v2026.4.612 to v2026.4.614 in package.json, README, and all docs
- Update p3x-redis-ui-material to ^2026.4.385 and p3x-redis-ui-server to ^2026.4.327
- Remove 7 obsolete preview images (settings, theme, language, gui variants)
- Update remaining 6 preview images with optimized versions (significantly reduced file sizes)
- Add P3XR_URL env var to CI workflow and remove PLAYWRIGHT_BASE_URL prefix
- Remove unused "static" config option from CI server configuration
- Update E2E test routes from root paths to /ng/ prefix (e.g. /settings -> /ng/settings)
- Add v2026.4.614 changelog entry documenting live connection refactor and image consolidation