feat: Initialize AI Studio project structure

Sets up the basic project files and dependencies for an AI Studio application. Includes README, `.env.example`, `.gitignore`, basic HTML structure, metadata, `package.json`, Vite configuration, and initial React component setup. This commit provides the foundation for running and deploying the AI Studio app locally.

metadata.json

@@ -0,0 +1,6 @@
+{
+  "name": "",
+  "description": "",
+  "requestFramePermissions": [],
+  "majorCapabilities": []
+}