feat: integrate analytics into main app

- Initialize analytics service on app startup
- Add PostHogProvider wrapper for React integration
- Include AnalyticsConsentBanner in App component
- Set up app lifecycle tracking with useAppLifecycle hook
- Configure PostHog with environment variables

src/main.tsx

@@ -2,13 +2,28 @@ import React from "react";
 import ReactDOM from "react-dom/client";
 import App from "./App";
 import { ErrorBoundary } from "./components/ErrorBoundary";
+import { analytics } from "./lib/analytics";
+import { PostHogProvider } from "posthog-js/react";
 import "./assets/shimmer.css";
 import "./styles.css";
 
+// Initialize analytics before rendering
+analytics.initialize();
+
 ReactDOM.createRoot(document.getElementById("root") as HTMLElement).render(
   <React.StrictMode>
-    <ErrorBoundary>
-      <App />
-    </ErrorBoundary>
+    <PostHogProvider
+      apiKey={import.meta.env.VITE_PUBLIC_POSTHOG_KEY}
+      options={{
+        api_host: import.meta.env.VITE_PUBLIC_POSTHOG_HOST,
+        defaults: '2025-05-24',
+        capture_exceptions: true,
+        debug: import.meta.env.MODE === "development",
+      }}
+    >
+      <ErrorBoundary>
+        <App />
+      </ErrorBoundary>
+    </PostHogProvider>
   </React.StrictMode>,
 );