Refactor registration and dashboard features to support invite codes and Bunny uploads

- Moved registration logic to a new client component for better separation of concerns.
- Integrated invite code requirement based on feature flags in the registration process.
- Enhanced dashboard functionality to conditionally enable Bunny uploads based on feature flags.
- Updated various components and API routes to check for Bunny uploads and Stripe billing feature flags.
- Added new feature flag utilities for managing feature toggles in the application.

app/api/projects/[projectId]/videos/bunny-init/route.ts

@@ -6,6 +6,7 @@ import { rateLimit } from '@/lib/rate-limit';
 import crypto from 'crypto';
 import { cleanupBunnyStreamVideos } from '@/lib/bunny-stream-cleanup';
 import { createBunnyUploadToken, verifyBunnyUploadToken } from '@/lib/bunny-upload-token';
+import { isBunnyUploadsFeatureEnabled } from '@/lib/feature-flags';
 
 type RouteParams = { params: Promise<{ projectId: string }> };
 
@@ -50,6 +51,10 @@ export async function POST(request: NextRequest, { params }: RouteParams) {
             return apiErrors.badRequest('Title is required');
         }
 
+        if (!isBunnyUploadsFeatureEnabled()) {
+            return apiErrors.badRequest('Direct uploads are disabled by this host');
+        }
+
         const apiKey = process.env.BUNNY_STREAM_API_KEY;
         const libraryId = process.env.BUNNY_STREAM_LIBRARY_ID || process.env.NEXT_PUBLIC_BUNNY_STREAM_LIBRARY_ID;