Start TEN-WP-0005-T05: recover deploy manifests and add CI image build

Production still serves the TEN-WP-0004 image, which has no lifecycle
routes. Recover the live railiance01 objects into deploy/ so rollback
does not depend on a cluster annotation, and add the fleet CI image
workflow so the lifecycle image is built from a forge revision.

deploy/README.md

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+# tenant-engine production deployment
+
+Manifests recovered from the live objects'
+`kubectl.kubernetes.io/last-applied-configuration` on 2026-08-14 so that a
+rollback does not depend on a cluster annotation. Applied originally during
+TEN-WP-0004; TEN-WP-0005 keeps them in-repo and pins by digest.
+
+| File | Deployment | Service DNS |
+| --- | --- | --- |
+| `tenant-engine.yaml` | `tenant-engine` | `tenant-engine.tenant-engine.svc.cluster.local:8090` |
+
+The file is a five-document manifest: `Namespace`, `PersistentVolumeClaim`,
+`Deployment`, `Service`, and a least-privilege `NetworkPolicy`. Ingress is
+restricted to the `user-engine` workload; egress is restricted to
+`flex-auth-tenant-engine` on 8080 plus cluster DNS.
+
+## Rolling out an image
+
+**Do not build images on a workstation.** `.forgejo/workflows/image.yaml`
+builds from a pushed forge commit on the `container-build` runner.
+
+```bash
+# 1. Push the commit you intend to ship; CI builds :latest and :main-<short-sha>
+git push origin main
+
+# 2. Take the immutable digest from the workflow's "Report immutable digest"
+#    step -- deploy by digest, never by tag
+
+# 3. Edit the image digest in deploy/tenant-engine.yaml, then apply
+kubectl apply -f deploy/tenant-engine.yaml
+kubectl -n tenant-engine rollout status deploy/tenant-engine --timeout=120s
+```
+
+The Deployment uses `Recreate` because the SQLite PVC is `ReadWriteOnce`.
+A new pod applies the forward-only lifecycle migration on startup against
+the existing database.
+
+## Rollback
+
+```bash
+kubectl -n tenant-engine rollout undo deploy/tenant-engine
+```
+
+If the ReplicaSet history has been pruned, re-apply the manifest with the
+last-known-good digest below.
+
+| Deployment | Digest | State |
+| --- | --- | --- |
+| `tenant-engine` | `sha256:2249e8c6ee44ae36081cddc52daf9c3f63acd18a95a5d620ab4fa7ac85149207` | **current** — TEN-WP-0004 create/role/plan API, live since 2026-08-09 |
+| `tenant-engine` *(earlier)* | `sha256:33c5dd84eaf1c2f5e067c04931219e13f9348a764a153d641035a6d019095d4f` | first TEN-WP-0004 revision |
+
+Rolling back to `2249e8c6…` removes the lifecycle routes (`GET /tenants/{id}`,
+`PATCH`, retire, reactivate). Create, role grant/revoke, and plan assign keep
+working. The SQLite lifecycle columns added by the TEN-WP-0005 migration are
+forward-only and stay in place; the older image ignores them.

deploy/tenant-engine.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: tenant-engine
+  labels:
+    net-kingdom/component: tenant-engine
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: tenant-engine-data
+  namespace: tenant-engine
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tenant-engine
+  namespace: tenant-engine
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: tenant-engine
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: tenant-engine
+    spec:
+      automountServiceAccountToken: false
+      containers:
+      - name: tenant-engine
+        env:
+        - name: TENANT_ENGINE_DATABASE_PATH
+          value: /data/tenant-engine.db
+        - name: TENANT_ENGINE_FLEX_AUTH_URL
+          value: http://flex-auth-tenant-engine.flex-auth.svc.cluster.local:8080
+        image: forgejo.coulomb.social/coulomb/tenant-engine@sha256:2249e8c6ee44ae36081cddc52daf9c3f63acd18a95a5d620ab4fa7ac85149207
+        livenessProbe:
+          httpGet:
+            path: /health
+            port: http
+          periodSeconds: 20
+        ports:
+        - containerPort: 8090
+          name: http
+        readinessProbe:
+          httpGet:
+            path: /health
+            port: http
+          periodSeconds: 5
+        resources:
+          limits:
+            cpu: 300m
+            memory: 192Mi
+          requests:
+            cpu: 25m
+            memory: 48Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+              - ALL
+          readOnlyRootFilesystem: true
+        volumeMounts:
+        - mountPath: /data
+          name: data
+      securityContext:
+        fsGroup: 10001
+        runAsNonRoot: true
+        seccompProfile:
+          type: RuntimeDefault
+      volumes:
+      - name: data
+        persistentVolumeClaim:
+          claimName: tenant-engine-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: tenant-engine
+  namespace: tenant-engine
+spec:
+  ports:
+  - name: http
+    port: 8090
+    targetPort: http
+  selector:
+    app.kubernetes.io/name: tenant-engine
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: tenant-engine
+  namespace: tenant-engine
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/name: tenant-engine
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+  - from:
+    - namespaceSelector:
+        matchLabels:
+          kubernetes.io/metadata.name: user-engine
+      podSelector:
+        matchLabels:
+          app.kubernetes.io/name: user-engine
+    ports:
+    - port: 8090
+      protocol: TCP
+  egress:
+  - ports:
+    - port: 8080
+      protocol: TCP
+    to:
+    - namespaceSelector:
+        matchLabels:
+          kubernetes.io/metadata.name: flex-auth
+      podSelector:
+        matchLabels:
+          app.kubernetes.io/name: flex-auth-tenant-engine
+  - ports:
+    - port: 53
+      protocol: UDP
+    - port: 53
+      protocol: TCP
+    to:
+    - namespaceSelector:
+        matchLabels:
+          kubernetes.io/metadata.name: kube-system