Initial demo setup for Komodo + Gitea integration

Added:
- Simple Express.js app with health endpoint
- Dockerfile for containerization
- Docker Compose configuration
- Komodo resource definitions (.komodo/resources.toml)
- Comprehensive README with integration details

This repo demonstrates Build, Stack, and Sync resources.

docker-compose.yml

@@ -0,0 +1,18 @@
+version: '3.8'
+
+services:
+  app:
+    image: komodo-demo-app:latest
+    container_name: komodo-demo-app
+    ports:
+      - "3000:3000"
+    environment:
+      - PORT=3000
+      - NODE_ENV=production
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:3000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s