Add OBS scene switching controls with dynamic button states

- Add setScene API endpoint for OBS scene switching (1-Screen, 2-Screen, 4-Screen)
- Add getCurrentScene API endpoint to fetch active OBS scene
- Implement scene switching buttons in main UI with dynamic state tracking
- Buttons change color and text based on current active scene
- Glass morphism styling with Solarized Dark gradients
- Real-time scene state synchronization with optimistic UI updates
- Toast notifications for user feedback

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/api/getCurrentScene/route.ts

@@ -0,0 +1,30 @@
+import { NextResponse } from 'next/server';
+import { getOBSClient } from '../../../lib/obsClient';
+
+export async function GET() {
+  try {
+    const obsClient = await getOBSClient();
+    
+    // Get the current program scene
+    const response = await obsClient.call('GetCurrentProgramScene');
+    const { currentProgramSceneName } = response;
+    
+    console.log(`Current OBS scene: ${currentProgramSceneName}`);
+    
+    return NextResponse.json({
+      success: true,
+      data: { sceneName: currentProgramSceneName },
+      message: 'Current scene retrieved successfully'
+    });
+  } catch (obsError) {
+    console.error('OBS WebSocket error:', obsError);
+    return NextResponse.json(
+      { 
+        success: false, 
+        error: 'Failed to get current scene from OBS',
+        details: obsError instanceof Error ? obsError.message : 'Unknown error'
+      },
+      { status: 500 }
+    );
+  }
+}