1. Parallel Zone Downloads (3x faster)
- CZDS zones now download in parallel with semaphore
- Configurable max_concurrent (default: 3)
- Added timing logs for performance monitoring
2. Email Alerts for Ops
- New send_ops_alert() in email service
- Automatic alerts on zone sync failures
- Critical alerts on complete job crashes
- Severity levels: info, warning, error, critical
3. Admin Zone Sync Dashboard
- New "Zone Sync" tab in admin panel
- Real-time status for all TLDs
- Manual sync trigger buttons
- Shows drops today, total drops, last sync time
- Health status indicators (healthy/stale/never)
- API endpoint: GET /admin/zone-sync/status
Backend:
- Added DROPPING_SOON status to DomainStatus enum
- Added deletion_date field to Domain model
- domain_checker now returns DROPPING_SOON for pending delete
- Track endpoint copies status and deletion_date from drop
Frontend:
- Watchlist shows "TRANSITION" status for dropping_soon domains
- AnalyzePanel shows consistent status from Watchlist
- Status display unified between Drops, Watchlist, and Panel
Backend:
- Fixed track endpoint duplicate key error with proper rollback
- Returns domain_id for already tracked domains
Frontend DropsTab:
- Added trackedDrops state to show "Tracked" status
- Track button shows checkmark when already in watchlist
- Status button shows "In Transition" with countdown
AnalyzePanel:
- Added dropStatus to store for passing drop info
- Shows Drop Status banner with availability
- "Buy Now" button for available domains in panel
- Disabled verify_drops scheduler job (caused RDAP rate limit bans)
- Zone files now saved without RDAP verification (zone diff is reliable)
- Added date-based zone file snapshots with 3-day retention
- Improved DropsTab UI with better status display:
- "In Transition" with countdown timer for dropping_soon
- "Available Now" with Buy button
- "Re-registered" for taken domains
- Track button for dropping_soon domains
- Added --shm-size=8g to backend container for multiprocessing
- Removed duplicate host cron job (scheduler handles everything)
