fix: improve Render deployment config for reliability

- Switch agent from pserv to web type (enables health checks)
- Switch app from Docker to native Node runtime
- Add auto-scaling (1-3 instances) on both services
- Add health check endpoints (agent /ok, app /api/health)
- Pin NODE_VERSION=22
- Update fromService reference for new web type

Author: GeneralJerel

apps/app/src/app/api/health/route.ts

@@ -0,0 +1,3 @@
+export function GET() {
+  return Response.json({ status: "ok" });
+}

render.yaml

@@ -1,11 +1,16 @@
 services:
-  # ── Agent (LangGraph Python) — private, not exposed to internet ──
-  - type: pserv
+  # ── Agent (LangGraph Python) — Docker required for langgraph-api image ──
+  - type: web
     name: open-generative-ui-agent
     runtime: docker
     plan: starter
     dockerfilePath: docker/Dockerfile.agent
     healthCheckPath: /ok
+    scaling:
+      minInstances: 1
+      maxInstances: 3
+      targetMemoryPercent: 80
+      targetCPUPercent: 70
     envVars:
       - key: OPENAI_API_KEY
         sync: false
@@ -18,17 +23,28 @@ services:
         - apps/agent/**
         - docker/Dockerfile.agent
 
-  # ── Frontend (Next.js) — public web service ──
+  # ── Frontend (Next.js) — native Node runtime ──
   - type: web
     name: open-generative-ui-app
-    runtime: docker
+    runtime: node
     plan: starter
-    dockerfilePath: docker/Dockerfile.app
+    scaling:
+      minInstances: 1
+      maxInstances: 3
+      targetMemoryPercent: 80
+      targetCPUPercent: 70
+    buildCommand: corepack enable && pnpm install --no-frozen-lockfile && pnpm --filter @repo/app build
+    startCommand: pnpm --filter @repo/app start
+    healthCheckPath: /api/health
     envVars:
+      - key: NODE_VERSION
+        value: "22"
+      - key: SKIP_INSTALL_DEPS
+        value: "true"
       - key: LANGGRAPH_DEPLOYMENT_URL
         fromService:
           name: open-generative-ui-agent
-          type: pserv
+          type: web
           property: hostport
       - key: LANGSMITH_API_KEY
         sync: false
@@ -44,4 +60,3 @@ services:
         - package.json
         - pnpm-lock.yaml
         - turbo.json
-        - docker/Dockerfile.app