- Add AppSnapshot entity with type (pre_deploy/manual), status tracking, and file paths
- Add SnapshotsService with create, capture, rollback, prune (max 10), and download logic
- Add SnapshotsController with REST endpoints for CRUD, rollback, and file downloads
- Add K8s methods: exportDatabaseDump, archiveWpContent, restoreWpContent
- Auto-create pre-deploy snapshots before each deployment for rollback safety
- Support downloading current live state (source, wp-content, database) without snapshots
- Add snapshot management UI in app detail page with create, rollback, download, delete
- Wire circular dependencies with forwardRef between Deployments and Snapshots modules
- Backend: added redeployApplication() to DeploymentsService that creates
a new deployment record and re-runs the full build+deploy pipeline
- Backend: added POST /deployments/applications/:appId/redeploy endpoint
- Frontend: added Redeploy button on app detail page, visible after first
deploy when no build is in progress
- For git-based apps: pulls latest code from repo on each redeploy
- For zip-based apps: rebuilds from last uploaded source code
keyhan