- Drag-and-drop widget arrangement (main two-column zone + sidebar) with
per-widget span resize, persisted to Users.preferences.dashboard.layout
via saveDashboardLayout (migration included)
- New personal widgets: Wallet, Open Negotiations, My Tickets (View all),
Recent Notifications (per-row mark as read)
- Widgets that are empty or not visible to the viewer are omitted so they
never render as empty drag targets
- Registers both pending migrations and regenerates payload types/schema
