Back up every store: the restic module holds node-backup, the stores contribute their dumps

ADR 0214 / to-be 43. restic keeps one repository per machine and takes a nightly snapshot per
module — 14 daily, 8 weekly, 6 monthly — and restores beside the live data, never over it. postgres,
mssql and mongodb contribute a consistent dump; minio, influxdb, the vault, mailu, gitea and
nextcloud the directories that hold their data.

modules/gitea/module.json

@@ -222,5 +222,12 @@
       "failregex": "^.*Failed authentication attempt for .* from <HOST>(?::\\d+)?\\s*$\n            ^.*Invalid user .* from <HOST> port \\d+\\s*$\n            ^.*User \\S+ from <HOST> not allowed because .*$",
       "jail": "backend = systemd\njournalmatch = CONTAINER_NAME=gitea\nport = http,https,222\nmaxretry = 3\nfindtime = 1d\nbantime = 1d"
     }
+  ],
+  "contributions": [
+    {
+      "seat": "node-backup",
+      "kind": "backup",
+      "content": "path ${dir:data}\n"
+    }
   ]
 }