Add n8n test mode toggle and edge function improvements

- Add test/production toggle for n8n webhook URLs in IntegrasiTab
- Update create-meet-link function to use database test_mode setting
- Add send-email-v2 edge function for Mailketing API integration
- Update daily-reminders and send-consultation-reminder to use send-email-v2
- Remove deprecated branding field from BrandingTab
- Update domain references from hub.dwindi.com to with.dwindi.com
- Add environment variables for Coolify deployment
- Add comprehensive edge function test script
- Update payment flow redirect to order detail page

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

supabase/functions/send-email-v2/index.ts

@@ -0,0 +1,99 @@
+import { serve } from "https://deno.land/std@0.190.0/http/server.ts";
+
+const corsHeaders = {
+  "Access-Control-Allow-Origin": "*",
+  "Access-Control-Allow-Headers": "authorization, x-client-info, apikey, content-type",
+};
+
+interface EmailRequest {
+  to: string;
+  api_token: string;
+  from_name: string;
+  from_email: string;
+  subject: string;
+  html_body: string;
+}
+
+// Send via Mailketing API
+async function sendViaMailketing(request: EmailRequest): Promise<{ success: boolean; message: string }> {
+  const { to, api_token, from_name, from_email, subject, html_body } = request;
+
+  const formData = new FormData();
+  formData.append('to', to);
+  formData.append('from_name', from_name);
+  formData.append('from_email', from_email);
+  formData.append('subject', subject);
+  formData.append('html_body', html_body);
+
+  console.log(`Sending email via Mailketing to ${to}`);
+
+  const response = await fetch('https://api.mailketing.co/v1/send', {
+    method: 'POST',
+    headers: {
+      'Authorization': `Bearer ${api_token}`,
+    },
+    body: formData,
+  });
+
+  if (!response.ok) {
+    const errorText = await response.text();
+    console.error('Mailketing API error:', response.status, errorText);
+    throw new Error(`Mailketing API error: ${response.status} ${errorText}`);
+  }
+
+  const result = await response.json();
+  console.log('Mailketing API response:', result);
+
+  return {
+    success: true,
+    message: result.message || 'Email sent successfully via Mailketing'
+  };
+}
+
+serve(async (req: Request): Promise<Response> => {
+  if (req.method === "OPTIONS") {
+    return new Response(null, { headers: corsHeaders });
+  }
+
+  try {
+    const body: EmailRequest = await req.json();
+
+    // Validate required fields
+    if (!body.to || !body.api_token || !body.from_name || !body.from_email || !body.subject || !body.html_body) {
+      return new Response(
+        JSON.stringify({ success: false, message: "Missing required fields: to, api_token, from_name, from_email, subject, html_body" }),
+        { status: 400, headers: { ...corsHeaders, "Content-Type": "application/json" } }
+      );
+    }
+
+    // Basic email validation
+    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+    if (!emailRegex.test(body.to) || !emailRegex.test(body.from_email)) {
+      return new Response(
+        JSON.stringify({ success: false, message: "Invalid email format" }),
+        { status: 400, headers: { ...corsHeaders, "Content-Type": "application/json" } }
+      );
+    }
+
+    console.log(`Attempting to send email to: ${body.to}`);
+    console.log(`From: ${body.from_name} <${body.from_email}>`);
+    console.log(`Subject: ${body.subject}`);
+
+    const result = await sendViaMailketing(body);
+
+    return new Response(
+      JSON.stringify(result),
+      { status: 200, headers: { ...corsHeaders, "Content-Type": "application/json" } }
+    );
+
+  } catch (error: any) {
+    console.error("Error sending email:", error);
+    return new Response(
+      JSON.stringify({
+        success: false,
+        message: error.message || "Failed to send email"
+      }),
+      { status: 500, headers: { ...corsHeaders, "Content-Type": "application/json" } }
+    );
+  }
+});