feat: Restructure UI with navigation and separate pages

- Add Navigation component with clean tab-based navigation
- Create StatusOverview component for main dashboard indicators
- Split functionality into separate pages:
  * Overview page with status and quick actions
  * Analysis page for AI analysis
  * Trading page for manual trading and history
  * Automation page for auto-trading settings
  * Settings page for developer configuration
- Add React dependencies to package.json
- Maintain clean separation of concerns

app/settings/page.tsx

@@ -0,0 +1,25 @@
+import DeveloperSettings from '../../components/DeveloperSettings'
+import DriftAccountStatus from '../../components/DriftAccountStatus'
+
+export default function SettingsPage() {
+  return (
+    <div className="space-y-8">
+      <div className="flex items-center justify-between">
+        <div>
+          <h1 className="text-3xl font-bold text-white">Settings</h1>
+          <p className="text-gray-400 mt-2">Developer configuration and account status</p>
+        </div>
+      </div>
+      
+      <div className="grid grid-cols-1 xl:grid-cols-2 gap-8">
+        <div className="space-y-6">
+          <DriftAccountStatus />
+        </div>
+        
+        <div className="space-y-6">
+          <DeveloperSettings />
+        </div>
+      </div>
+    </div>
+  )
+}