chore: bump version to v2026.4.301}
- Update package.json version from 2026.4.299 to 2026.4.302
- Update build version references from v2026.4.298 to v2026.4.301 across documentation files (README.md, INSTALL.md, AGENTS.md, change-log.md, change-break.md, todo.md, artifacts/php-7.2-ubuntu.md, artifacts/screenshots.md)