feat(frontend): Scaffold React project with Vite, Tailwind CSS v4, and shadcn/ui

frontend/GEMINI.md

@@ -0,0 +1,18 @@
+# Election Analytics Chatbot - Frontend Guide
+
+## Overview
+This document serves as a guide for the frontend implementation of the Election Analytics Chatbot.
+
+## Key Technologies
+- **React**: UI library.
+- **TypeScript**: Static typing.
+- **Vite**: Build tool and dev server.
+- **Tailwind CSS**: Styling (if used, need to verify). Use v4.
+
+## Integration
+The frontend communicates with the backend API to stream agent responses and display analysis results, including charts and dataframes.
+
+## Development
+- `npm install`: Install dependencies.
+- `npm run dev`: Start development server.
+- `npm run build`: Build for production.