fix: nzbhydra2 stale NFS H2 lock -> local /var/lib/nzbhydra; add Farm Manager links page to post-change checklist

nzbhydra2 was the 4th victim of the 2026-07-12 power-event stale NFS locks
(H2 'file is locked' retry loop; the earlier mem bump was a red herring).
Farm Manager links updated (AdGuard/Actual Budget/Portainer removed, UniFi
-> :11443) and image rebuilt; links maintenance is now checklist item 5.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

compose/bart/media/docker-compose.yml

@@ -119,7 +119,9 @@ services:
       - PGID=1000
       - TZ=America/Chicago
     volumes:
-      - /mnt/docker-data/configs/nzbhydra:/config
+      # LOCAL disk, not NFS: stale NFS lock on the H2 database after the
+      # 2026-07-12 power event kept hydra unhealthy in a DB-retry loop
+      - /var/lib/nzbhydra:/config
     ports:
       - "5076:5076"
     mem_limit: 1G