v0.9.13

Added

• Added Update Manager search, per-tab A-Z sorting, Autoupdate selected, and mobile-style icon tabs that reveal labels only for the active section.
• Added stricter backend deployment hardening with optional trusted-proxy support, secure session cookies, inactivity-based page-session expiry, and baseline security headers for reverse-proxy deployments.

Changed

• Unified the app version surfaces on v0.9.13, including the UI footer, rendered pages, diagnostics payloads, SSE test fixtures, and release documentation.
• Reworked the login screen so desktop and mobile now share the dashboard-style background and a simpler centered brand block.

Testing

• Expanded route and end-to-end coverage for Update Manager filtering, sorting, bulk auto-update, button sizing, version consistency, login rendering, and the new backend security headers and session policy.