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/argocd/apps/roboco.yaml

@@ -0,0 +1,56 @@
+# ArgoCD Application for RoboCo
+# This defines how ArgoCD should deploy and manage RoboCo
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: roboco
+  namespace: argocd
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+
+  source:
+    # GitHub repository containing K8s manifests
+    repoURL: git@github.com:renzof/roboco.git
+    targetRevision: main
+    path: deploy/overlays/production
+
+  destination:
+    # Deploy to local cluster
+    server: https://kubernetes.default.svc
+    namespace: roboco
+
+  syncPolicy:
+    automated:
+      # Automatically prune resources that are no longer in git
+      prune: true
+      # Automatically sync when ArgoCD detects drift
+      selfHeal: true
+      # Don't allow empty directories
+      allowEmpty: false
+    syncOptions:
+      # Create namespace if it doesn't exist
+      - CreateNamespace=true
+      # Use foreground deletion for proper cleanup
+      - PrunePropagationPolicy=foreground
+    retry:
+      limit: 5
+      backoff:
+        duration: 5s
+        factor: 2
+        maxDuration: 3m
+
+  # Ignore differences that are expected (e.g., HPA manages replicas)
+  ignoreDifferences:
+    - group: apps
+      kind: Deployment
+      jsonPointers:
+        - /spec/replicas
+
+  # Health checks
+  info:
+    - name: description
+      value: "RoboCo AI Agentic Company"
+    - name: maintainer
+      value: "renzof"