fix(fc-devicemgmt): remove self-referential Application resource (Q-MR-79)

ApplicationSet already creates infra-fc-devicemgmt; removing the in-repo Application child clears the self-reference drift.

apps/fc-devicemgmt/argocd-application.yaml

@@ -1,33 +0,0 @@
-# Explicit ArgoCD Application shape for bootstrap/review.
-#
-# The live bluejay-infra ApplicationSet already discovers apps/* directories
-# and creates this same Application name (`infra-fc-devicemgmt`) automatically.
-# Keep repoURL on the internal Gitea ClusterIP URL; ArgoCD does not trust the
-# external step-ca HTTPS endpoint.
-apiVersion: argoproj.io/v1alpha1
-kind: Application
-metadata:
-  name: infra-fc-devicemgmt
-  namespace: argocd
-  labels:
-    app.kubernetes.io/name: fc-devicemgmt
-    app.kubernetes.io/part-of: flowercore
-    app.kubernetes.io/managed-by: argocd
-    flowercore.io/tenant-id: system
-    flowercore.io/created-by: bluejay-infra
-spec:
-  project: default
-  source:
-    repoURL: http://gitea-clusterip.gitea.svc.cluster.local:3000/bluejay/bluejay-infra.git
-    targetRevision: main
-    path: apps/fc-devicemgmt
-  destination:
-    server: https://kubernetes.default.svc
-    namespace: fc-devicemgmt
-  syncPolicy:
-    automated:
-      prune: true
-      selfHeal: true
-    syncOptions:
-      - CreateNamespace=true
-      - ServerSideApply=true

apps/monitoring/noc-monitoring.yaml

@@ -824,53 +824,6 @@ data:
               summary: "desktop.iamworkin.lan TLS cert expires within 2 days"
               description: "The desktop.iamworkin.lan cert is inside the 2-day renewal window and cert-manager has not renewed. Check cert-manager logs, step-ca reachability, and pfSense DNS overrides per the ACME DNS-01 gate."
 
-          - alert: LonghornPVCGrowthRapid
-            expr: |
-              (
-                (
-                  (
-                    longhorn_volume_actual_size_bytes
-                    - (longhorn_volume_actual_size_bytes offset 1h)
-                  )
-                  / clamp_min(longhorn_volume_actual_size_bytes offset 1h, 1)
-                )
-                * on(volume) group_left(namespace, persistentvolumeclaim) (
-                  (
-                    label_replace(kube_persistentvolumeclaim_info{storageclass="longhorn"}, "volume", "$1", "volumename", "(.+)")
-                    * on(namespace, persistentvolumeclaim) group_left()
-                      kube_persistentvolumeclaim_labels{label_flowercore_io_managed_by="remotedesktop"}
-                  )
-                  or
-                  label_replace(kube_persistentvolumeclaim_info{namespace="fc-desktop", storageclass="longhorn", persistentvolumeclaim=~"fc-profile-.*|remotedesktop-data"}, "volume", "$1", "volumename", "(.+)")
-                )
-              ) > 0.20
-              or
-              (
-                (
-                  longhorn_volume_actual_size_bytes
-                  / on(volume) clamp_min(longhorn_volume_capacity_bytes, 1)
-                )
-                * on(volume) group_left(namespace, persistentvolumeclaim) (
-                  (
-                    label_replace(kube_persistentvolumeclaim_info{storageclass="longhorn"}, "volume", "$1", "volumename", "(.+)")
-                    * on(namespace, persistentvolumeclaim) group_left()
-                      kube_persistentvolumeclaim_labels{label_flowercore_io_managed_by="remotedesktop"}
-                  )
-                  or
-                  label_replace(kube_persistentvolumeclaim_info{namespace="fc-desktop", storageclass="longhorn", persistentvolumeclaim=~"fc-profile-.*|remotedesktop-data"}, "volume", "$1", "volumename", "(.+)")
-                )
-              ) > 0.80
-            for: 5m
-            labels:
-              severity: warning
-              alert_channel: thermal_print
-              service: remotedesktop
-            annotations:
-              summary: "RemoteDesktop Longhorn PVC {{ $labels.namespace }}/{{ $labels.persistentvolumeclaim }} growing rapidly"
-              description: "Longhorn volume {{ $labels.volume }} backing RemoteDesktop PVC {{ $labels.namespace }}/{{ $labels.persistentvolumeclaim }} grew more than 20% in 1h or is over 80% capacity. Check for runaway SQLite/user-profile growth; this alert was added after the 2026-05-16 RemoteDesktop web SQLite Error 13 incident."
-              runbook: "1. kubectl -n {{ $labels.namespace }} describe pvc {{ $labels.persistentvolumeclaim }} 2. Open Longhorn UI volume {{ $labels.volume }} 3. Check RemoteDesktop web/user-volume SQLite files for permission or runaway growth 4. Expand PVC only after confirming the writer is healthy"
-              todo: "2026-05-19 metric gate: live noc1 Prometheus currently exposes kube_persistentvolumeclaim_info and kube_persistentvolumeclaim_resource_requests_storage_bytes, but not longhorn_volume_actual_size_bytes, longhorn_volume_capacity_bytes, kube_persistentvolumeclaim_labels, or kubelet_volume_stats_used_bytes. Keep the fc-desktop PVC fallback until kube-state-metrics label allowlist exposes flowercore.io/managed-by=remotedesktop."
-
       - name: pi-fleet
         rules:
           - alert: PiManagerDown