feat(frontend): migrate all session routes to ambient-api-server, harden all route handlers

- Migrate all session/project API routes from V1 backend to ambient-api-server
- Harden all 90 route handlers: try/catch everywhere, structured 503 on ECONNREFUSED
- Fix agui/history and agui/runs routes to use ambient ag_ui_events endpoint
- Fix credentials/* routes: encodeURIComponent on path params
- Fix settings and workflows/ootb routes to use buildForwardHeadersAsync
- Add ambient-api-client, ambient-api-adapter library modules
- Add session watch, session messages, agents, session check-ins hooks and queries
- Remove scheduled sessions (replaced by agentic sessions), mcp credentials, workflow picker
- Fix SendAgUI proxy to pass raw AG-UI body to ambient-api-server
- Add check-ins accordion to session page

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

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

Author: markturansky

components/frontend/Dockerfile.dev

@@ -1,11 +1,11 @@
 # Development Dockerfile for Next.js with hot-reloading
-FROM registry.access.redhat.com/ubi9/nodejs-20:1
-
-# Root required for dev: source is volume-mounted and npm ci writes to it
-USER 0
+FROM node:20-alpine
 
 WORKDIR /app
 
+# Install dependencies for building native modules
+RUN apk add --no-cache libc6-compat python3 make g++
+
 # Set NODE_ENV to development
 ENV NODE_ENV=development
 ENV NEXT_TELEMETRY_DISABLED=1

components/frontend/README.md

@@ -37,7 +37,8 @@ go run .
 **Recommended: Use integrated local development environment:**
 ```bash
 # From repository root - single command setup
-make kind-up
+make local-up    # minikube
+# Or: make kind-up  # kind (recommended)
 # Access: http://localhost:8080
 ```