feat: add Kubernetes manifests and A2A protocol support

Phase 2 - A2A Protocol:
- Add A2A models (AgentCard, Task, Message)
- Add A2A service layer
- Add A2A routes with SSE streaming
- Add agent discovery endpoints

Phase 3 - Kubernetes:
- Add deploy/ directory with Kustomize structure
- PostgreSQL StatefulSet with pgvector
- Redis Deployment with persistence
- API and Orchestrator Deployments
- RBAC for orchestrator to manage Jobs
- ArgoCD Application manifest
- Development and production overlays
- K8s Jobs API support in orchestrator

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

deploy/base/redis/deployment.yaml

@@ -0,0 +1,64 @@
+# Redis Deployment for cache, sessions, and event bus
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis
+  namespace: roboco
+  labels:
+    app.kubernetes.io/name: redis
+    app.kubernetes.io/component: cache
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+        app.kubernetes.io/name: redis
+    spec:
+      containers:
+        - name: redis
+          image: redis:8-alpine
+          command:
+            - redis-server
+            - --appendonly
+            - "yes"
+            - --maxmemory
+            - "256mb"
+            - --maxmemory-policy
+            - allkeys-lru
+          ports:
+            - containerPort: 6379
+              name: redis
+          volumeMounts:
+            - name: redis-data
+              mountPath: /data
+          resources:
+            requests:
+              memory: "128Mi"
+              cpu: "100m"
+            limits:
+              memory: "512Mi"
+              cpu: "500m"
+          livenessProbe:
+            exec:
+              command:
+                - redis-cli
+                - ping
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            timeoutSeconds: 5
+          readinessProbe:
+            exec:
+              command:
+                - redis-cli
+                - ping
+            initialDelaySeconds: 5
+            periodSeconds: 5
+            timeoutSeconds: 3
+      volumes:
+        - name: redis-data
+          persistentVolumeClaim:
+            claimName: redis-data

deploy/base/redis/pvc.yaml

@@ -0,0 +1,16 @@
+# Redis Persistent Volume Claim
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: redis-data
+  namespace: roboco
+  labels:
+    app.kubernetes.io/name: redis
+    app.kubernetes.io/component: cache
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: nfs-roboco
+  resources:
+    requests:
+      storage: 1Gi

deploy/base/redis/service.yaml

@@ -0,0 +1,17 @@
+# Redis Service
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis
+  namespace: roboco
+  labels:
+    app.kubernetes.io/name: redis
+    app.kubernetes.io/component: cache
+spec:
+  type: ClusterIP
+  ports:
+    - port: 6379
+      targetPort: 6379
+      name: redis
+  selector:
+    app: redis