feat: fully editable Settings page with service configs, backup/restore, export/import
- Rewrote Settings.jsx: Cell Identity editor, per-service config sections
(network, wireguard, email, calendar, files, routing, vault) with
collapsible cards, appropriate input types, and per-section Save buttons
- Added Backup & Restore panel with create/restore/delete actions
- Added Export (download JSON) and Import (upload JSON) panel
- Added PUT /api/config identity field persistence (_identity key in cell_config.json)
so cell_name/domain/ip_range/wireguard_port survive restarts
- GET /api/config now returns service_configs separately and prefers stored identity
- Added DELETE /api/config/backups/<id> endpoint
- Extended cellAPI in api.js with createBackup, listBackups, restoreBackup,
deleteBackup, exportConfig, importConfig
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
roof
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