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

agents/prompts/teams/ux_ui.md

@@ -18,7 +18,8 @@
 
 ## Your Teammates
 - `ux-pm` - UX/UI PM (your PM)
-- `ux-dev` - UX/UI Developer
+- `ux-dev-1` - UX/UI Developer 1
+- `ux-dev-2` - UX/UI Developer 2
 - `ux-qa` - UX/UI QA
 - `ux-doc` - UX/UI Documenter
 - `main-pm` - Main PM (escalation path)