Fix edge function serve wrap

Add missing serve() wrapper and correct CORS configuration in supabase/functions/process-selective-approval/index.ts, and import necessary modules. This ensures the edge function handles requests and applies proper CORS headers.

supabase/functions/process-selective-approval/index.ts

@@ -1,4 +1,6 @@
+import { serve } from 'https://deno.land/std@0.190.0/http/server.ts';
 import { createEdgeFunction } from '../_shared/edgeFunctionWrapper.ts';
+import { corsHeadersWithTracing } from '../_shared/cors.ts';
 import { 
   addSpanEvent, 
   setSpanAttributes, 
@@ -289,13 +291,11 @@ const handler = async (req: Request, context: { supabase: any; user: any; span:
 };
 
 // Create edge function with automatic error handling, CORS, auth, and logging
-createEdgeFunction(
+serve(createEdgeFunction(
   {
     name: 'process-selective-approval',
     requireAuth: true,
-    corsEnabled: true,
-    enableTracing: true,
-    rateLimitTier: 'moderate'
+    corsHeaders: corsHeadersWithTracing,
   },
   handler
-);
+));