feat(infra): add all Kubernetes manifests

- namespace, temporal server, workspaces PVC
- API server deployment, service, serviceaccount, RBAC
- Dev overlay

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/cli/infra/k8s/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: shannon
+  labels:
+    app.kubernetes.io/part-of: shannon

apps/cli/infra/k8s/router.yaml

@@ -0,0 +1,69 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: shannon-router
+  namespace: shannon
+  labels:
+    app: shannon-router
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: shannon-router
+  template:
+    metadata:
+      labels:
+        app: shannon-router
+    spec:
+      containers:
+        - name: router
+          image: node:20-slim
+          command:
+            - sh
+            - -c
+            - |
+              apt-get update && apt-get install -y gettext-base &&
+              npm install -g @musistudio/claude-code-router &&
+              mkdir -p /root/.claude-code-router &&
+              envsubst < /config/router-config.json > /root/.claude-code-router/config.json &&
+              ccr start
+          ports:
+            - containerPort: 3456
+          envFrom:
+            - secretRef:
+                name: shannon-credentials
+          env:
+            - name: HOST
+              value: "0.0.0.0"
+          volumeMounts:
+            - name: config
+              mountPath: /config
+              readOnly: true
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 3456
+            initialDelaySeconds: 30
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 5
+          resources:
+            requests:
+              memory: 128Mi
+              cpu: 100m
+      volumes:
+        - name: config
+          configMap:
+            name: shannon-router-config
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: shannon-router
+  namespace: shannon
+spec:
+  selector:
+    app: shannon-router
+  ports:
+    - port: 3456
+      targetPort: 3456

apps/cli/infra/k8s/temporal.yaml

@@ -0,0 +1,86 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: temporal-data
+  namespace: shannon
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: shannon-temporal
+  namespace: shannon
+  labels:
+    app: shannon-temporal
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: shannon-temporal
+  template:
+    metadata:
+      labels:
+        app: shannon-temporal
+    spec:
+      containers:
+        - name: temporal
+          image: temporalio/temporal:latest
+          command:
+            - server
+            - start-dev
+            - --db-filename
+            - /home/temporal/temporal.db
+            - --ip
+            - "0.0.0.0"
+          ports:
+            - containerPort: 7233
+              name: grpc
+            - containerPort: 8233
+              name: web-ui
+          volumeMounts:
+            - name: data
+              mountPath: /home/temporal
+          readinessProbe:
+            exec:
+              command:
+                - temporal
+                - operator
+                - cluster
+                - health
+                - --address
+                - localhost:7233
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 10
+          resources:
+            requests:
+              memory: 256Mi
+              cpu: 250m
+            limits:
+              memory: 512Mi
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: temporal-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: shannon-temporal
+  namespace: shannon
+spec:
+  selector:
+    app: shannon-temporal
+  ports:
+    - name: grpc
+      port: 7233
+      targetPort: 7233
+    - name: web-ui
+      port: 8233
+      targetPort: 8233