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Add centralized errorFormatter to convert various error types into readable messages, and apply it across edge functions. Replace String(error) usage with formatEdgeError, update relevant imports, fix a throw to use toError, and enhance logger to log formatted errors. Includes new errorFormatter.ts and widespread updates to 18+ edge functions plus logger integration.

supabase/functions/validate-email-backend/index.ts

@@ -1,6 +1,7 @@
 import { serve } from "https://deno.land/std@0.168.0/http/server.ts";
 import { createClient } from 'https://esm.sh/@supabase/supabase-js@2.39.3';
 import { edgeLogger } from "../_shared/logger.ts";
+import { formatEdgeError } from "../_shared/errorFormatter.ts";
 
 const corsHeaders = {
   'Access-Control-Allow-Origin': '*',
@@ -96,7 +97,7 @@ serve(async (req) => {
     );
   } catch (error) {
     const duration = endRequest(tracking);
-    const errorMessage = error instanceof Error ? error.message : String(error);
+    const errorMessage = formatEdgeError(error);
     edgeLogger.error('Email validation error', {
       error: errorMessage,
       requestId: tracking.requestId,