Replace Uptime Kuma with monitoring checks

ops/borg-ui/BACKUP_SCOPE.md

@@ -81,7 +81,7 @@ The live Unraid User Scripts execute repo scripts from `/mnt/user/services/homel
 ### Other Databases
 
 - Komodo MongoDB
-- SQLite: `gitea`, `vaultwarden`, `uptime-kuma`, `speedtest-tracker`, `borg-ui`, `grafana`
+- SQLite: `gitea`, `vaultwarden`, `speedtest-tracker`, `borg-ui`, `grafana`
 - File-backed state: `filebrowser.bolt.dump`
 
 ## Explicitly Not Backed Up as Raw Live DB Files
@@ -101,7 +101,6 @@ These are not part of the first-class Borg scope:
 - Plex metadata and cache
 - AdGuard query log
 - code-server extensions cache
-- uptime-kuma
 - scrutiny metrics history
 - dozzle, glances, speedtest