feat(automations): add per-host maintenance mode and recurring schedules (#1521)

plugins/automations/locales/en.json

@@ -171,5 +171,40 @@
   "onboarding": {
     "feature_automations": "Automations",
     "feature_automations_desc": "Run steps automatically when something happens, and get notified."
+  },
+  "maintenance": {
+    "title": "Maintenance",
+    "description": "Pause host status, health, metric, container and tunnel-disconnection automations while work is in progress. Monitoring, manual runs and scheduled automations continue.",
+    "denied": "You do not have permission to view maintenance.",
+    "failed": "Maintenance could not be updated.",
+    "active": "Maintenance active",
+    "estimated": "Estimated completion",
+    "noAutoEnd": "The estimate does not end maintenance. End it explicitly when the work is complete.",
+    "endConfirm": "End maintenance and resume event-triggered automations for this host?",
+    "confirmEnd": "Confirm end",
+    "cancel": "Cancel",
+    "end": "End maintenance",
+    "action": "Action",
+    "startNow": "Start now",
+    "schedule": "Schedule for later",
+    "reason": "Reason",
+    "startUtc": "First start (UTC)",
+    "repeat": "Repeat",
+    "once": "Once",
+    "weekly": "Weekly",
+    "monthly": "Monthly",
+    "utcHelp": "Schedules use UTC throughout the year. Monthly schedules skip months without the selected day. Planned windows cannot overlap; overrunning maintenance continues across later windows.",
+    "duration": "Estimated duration (minutes)",
+    "grace": "Grace period (minutes)",
+    "notify": "Notify once if still offline after the estimate plus grace period",
+    "addSchedule": "Add schedule",
+    "schedules": "Schedules",
+    "noSchedules": "No maintenance schedules.",
+    "completed": "Already started",
+    "minutes_one": "{{count}} minute",
+    "minutes_other": "{{count}} minutes",
+    "remove": "Remove schedule",
+    "loadFailed": "Could not refresh maintenance status. Changes are disabled until it can be loaded.",
+    "loading": "Loading maintenance status…"
   }
 }