* feat: add RBAC viewer accounts, atomic deployments, and fleet-wide backups (Pro)
Introduces three Pro-tier features:
- RBAC: Multi-user system with admin/viewer roles, user management UI,
automatic migration from single-admin credentials, viewer restrictions
across the entire UI (read-only editor, hidden action buttons)
- Atomic Deployments: Pre-deploy file backup to .sencho-backup/, automatic
rollback on health probe failure, manual rollback button, health probes
added to stack updates, webhook-triggered deploys use atomic rollback
- Fleet-Wide Backups: Point-in-time snapshots of compose files across all
nodes (local + remote), stored centrally in SQLite, per-stack restore
with optional redeploy, graceful handling of offline nodes
* fix(settings): use correct ProGate prop name in UsersSection
* fix(settings): remove unused isPro prop from UsersSection
* fix(auth): fetch user info after login and setup so isAdmin is set correctly
Add custom webhooks allowing external CI/CD systems (GitHub Actions, GitLab CI, etc.)
to trigger stack actions via HTTP POST with HMAC-SHA256 signature authentication.
Includes webhook CRUD management UI in Settings, execution history tracking,
one-time secret reveal, enable/disable toggle, and comprehensive documentation.
Anso