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.

package.json

@@ -0,0 +1,12 @@
+{
+  "name": "komodo-demo-app",
+  "version": "1.0.0",
+  "description": "Demo app for Komodo + Gitea integration",
+  "main": "app.js",
+  "scripts": {
+    "start": "node app.js"
+  },
+  "dependencies": {
+    "express": "^4.18.2"
+  }
+}