Optimized agents rules subfolders, dependencies updates (#355)

* Update AGENTS.md and CLAUDE.md for improved clarity and structure
* Added MCP Server
* Added missing triggers to tables that should have used them
* Updated all dependencies
* Fixed rare bug in React present in the Admin layout which prevents navigating to pages (sometimes...)

packages/mailers/CLAUDE.md

@@ -0,0 +1,66 @@
+# Email Service Instructions
+
+This file contains guidance for working with the email service supporting Resend and Nodemailer.
+
+## Basic Usage
+
+```typescript
+import { getMailer } from '@kit/mailers';
+import { renderAccountDeleteEmail } from '@kit/email-templates';
+
+async function sendSimpleEmail() {
+    // Get mailer instance
+  const mailer = await getMailer();
+
+  // Send simple email
+  await mailer.sendEmail({
+    to: 'user@example.com',
+    from: 'noreply@yourdomain.com', 
+    subject: 'Welcome!',
+    html: '<h1>Welcome!</h1><p>Thank you for joining us.</p>',
+  });
+}
+
+async function sendComplexEmail() {
+  // Send with email template
+  const { html, subject } = await renderAccountDeleteEmail({
+    userDisplayName: user.name,
+    productName: 'My SaaS App',
+  });
+
+  await mailer.sendEmail({
+    to: user.email,
+    from: 'noreply@yourdomain.com',
+    subject,
+    html,
+  });
+}
+```
+
+## Email Templates
+
+Email templates are located in `@kit/email-templates` and return `{ html, subject }`:
+
+```typescript
+import { 
+  renderAccountDeleteEmail,
+  renderWelcomeEmail,
+  renderPasswordResetEmail 
+} from '@kit/email-templates';
+
+// Render template
+const { html, subject } = await renderWelcomeEmail({
+  userDisplayName: 'John Doe',
+  loginUrl: 'https://app.com/login'
+});
+
+// Send rendered email
+const mailer = await getMailer();
+
+await mailer.sendEmail({
+  to: user.email,
+  from: 'welcome@yourdomain.com',
+  subject,
+  html,
+});
+```