Initial commit: Chat-to-diagram v1.0

- Chat interface with OpenAI GPT integration
- Automatic diagram generation from text descriptions
- Tldraw canvas with Dagre layout engine
- REST API instead of WebSocket approach

🤖 Generated with Claude Code (https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

next.config.js

@@ -0,0 +1,15 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  // Disable React Strict Mode to prevent WebSocket disconnections during development
+  // Strict Mode causes double mounting/unmounting which closes WebSocket connections
+  reactStrictMode: false,
+  webpack: (config) => {
+    config.externals.push({
+      'utf-8-validate': 'commonjs utf-8-validate',
+      'bufferutil': 'commonjs bufferutil',
+    })
+    return config
+  },
+}
+
+module.exports = nextConfig