feat: Initialize project structure

Sets up the basic project configuration for Cognitive Clarity. This includes:
- Initializing `package.json` with necessary dependencies (React, Gemini API, Lucide React) and build scripts for Vite.
- Creating a basic `index.html` with Tailwind CSS and Google Fonts integration.
- Setting up `index.tsx` as the React application entry point.
- Configuring `tsconfig.json` for TypeScript compilation with Vite.
- Establishing `vite.config.ts` for development server setup and environment variable handling.
- Adding a standard `.gitignore` file.
- Updating `README.md` with local run instructions and AI Studio links.
- Defining `metadata.json` for application details.
- Creating core type definitions in `types.ts`.
- Populating `constants.ts` with initial CBT glossary terms.
- Adding utility functions for audio processing in `services/audioUtils.ts`.

package.json

@@ -0,0 +1,23 @@
+{
+  "name": "cognitive-clarity",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3",
+    "@google/genai": "^1.33.0",
+    "lucide-react": "^0.561.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.14.0",
+    "@vitejs/plugin-react": "^5.0.0",
+    "typescript": "~5.8.2",
+    "vite": "^6.2.0"
+  }
+}