feat: initialize OneOSS Hydrogen Box project

Set up the project structure using Vite, React, and Tailwind CSS. Added initial landing page components, assets, and build configuration for the OneOSS Hydrogen Safety & Carbon Factor Box application.

metadata.json

@@ -0,0 +1,6 @@
+{
+  "name": "OneOSS Hydrogen Box",
+  "description": "Product landing page for the futuristic OneOSS Hydrogen Safety & Carbon Factor Box.",
+  "requestFramePermissions": [],
+  "majorCapabilities": ["MAJOR_CAPABILITY_SERVER_SIDE_GEMINI_API"]
+}