New Features
Watcher heartbeat and status card
OSPF Watcher and IS-IS Watcher now send periodic heartbeats to Topolograph. A new Watchers Status card on the monitoring page shows each connected watcher with its area/ASN and the time of last contact, auto-refreshed every 30 seconds.

Improvements
Monitoring page UI: Fixed layout.
Runtime upgrade
Python 3.11 → 3.12. Existing user passwords are transparently re-hashed on first login - no manual action required.
Fixes
- Fixed logout redirect error introduced in v2.62.