feat(fc-devicemgmt): add Kubernetes deployment manifests

apps/fc-devicemgmt/1password-item.yaml

@@ -0,0 +1,26 @@
+# Runtime secrets for FlowerCore.DeviceManagement.
+#
+# OnePasswordItem operator syncs this item into a Kubernetes Secret with the
+# same name. Expected fields:
+#   DB-Password
+#   mtls-ca.pem
+#   mtls-client.crt
+#   mtls-client.key
+#   mtls-chain.pem
+#
+# Do not add literal secret values to this repo. Runtime pods consume the
+# synced Secret through env vars and read-only mounts.
+apiVersion: onepassword.com/v1
+kind: OnePasswordItem
+metadata:
+  name: fc-devicemgmt-runtime
+  namespace: fc-devicemgmt
+  labels:
+    app.kubernetes.io/name: fc-devicemgmt
+    app.kubernetes.io/component: secrets
+    app.kubernetes.io/part-of: flowercore
+    app.kubernetes.io/managed-by: argocd
+    flowercore.io/tenant-id: system
+    flowercore.io/created-by: bluejay-infra
+spec:
+  itemPath: "vaults/IAmWorkin/items/FlowerCore DeviceManagement Runtime"