Fix security vulnerabilities

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

@@ -1,6 +1,7 @@
 import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
 import { createClient } from "https://esm.sh/@supabase/supabase-js@2.57.4";
 import { validateEntityData, validateEntityDataStrict } from "./validation.ts";
+import { createErrorResponse } from "../_shared/errorSanitizer.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -437,9 +438,11 @@ serve(async (req) => {
     );
   } catch (error) {
     console.error('Error in process-selective-approval:', error);
-    return new Response(
-      JSON.stringify({ error: error instanceof Error ? error.message : 'Unknown error' }),
-      { status: 500, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+    return createErrorResponse(
+      error,
+      500,
+      corsHeaders,
+      'process-selective-approval'
     );
   }
 });