- Replaced http.Error with helpers.RenderError in Recover middleware
- Custom 500.html now rendered with layout and topbar on panic
- RenderError gracefully checks template existence and falls back to plain response
- Added /account/notifications full view page (index)
- Linked "Back to notifications" from notification read view
- Fixed typo in template path for notifications/index.html
- Improved layout consistency across error and account pages
