Fix production data fetching with static JSON

- Add build-time data fetching from Confluence
- Create build-data.js script to fetch and save data at build time
- Update App.tsx to use static JSON in production, API in development
- Install tsx for running TypeScript build scripts
- Configure Amplify to fetch data during build process
- Add public directory configuration to Vite

This fixes the white page error by providing data at build time instead of runtime.

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

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

vite.config.ts

@@ -11,6 +11,7 @@ export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd(), '')
   
   return {
+    publicDir: 'public',
     plugins: [
       react(),
       {