- Add api_key field to MonitoredServer model with unique index
- Add migration to create api_key column
- Add POST /admin/servers/{id}/api-key for key generation
- Add DELETE /admin/servers/{id}/api-key for key revocation
- Add POST /server/heartbeat-v2 with X-API-Key header auth
- TelemetryPayload includes load_avg and uptime_seconds
- New milestone_actions router with POST freeze/start/close endpoints
- freeze: validates exactly 1 release maintenance task exists
- start: validates all milestone/task dependencies completed, records started_at
- close: allows from open/freeze/undergoing with reason
- try_auto_complete_milestone helper: auto-completes milestone when sole release task finishes
- Wired auto-complete into task transition and update endpoints
- Added freeze enforcement: no new feature story tasks after freeze
- Added started_at to milestone serializer
- All actions write activity logs
- New Propose model (app/models/propose.py) with status enum (open/accepted/rejected)
- New Propose schemas (ProposeCreate/Update/Response) in schemas.py
- MySQL enum migration in main.py for milestone/task status columns
- milestone: pending→open, deferred→closed, progressing→undergoing
- task: progressing→undergoing
- Import propose model in startup for create_all
- Add started_at column migration for milestones
- Add init_wizard.py: fetch config from AbstractWizard on startup
- Create admin user if not exists (from wizard config)
- Create default project if configured
- Graceful fallback when wizard is unavailable
