chore: Add free tools on marketing pages

apps/landing/src/lib/emailVerification.ts

@@ -0,0 +1,26 @@
+export interface EmailVerificationResult {
+  email: string;
+  valid: boolean;
+  isDisposable: boolean;
+  isTypo: boolean;
+  isPlusAddressed: boolean;
+  domainExists: boolean;
+  hasMxRecords: boolean;
+  suggestedEmail?: string;
+  reasons: string[];
+}
+
+export async function verifyEmail(email: string): Promise<EmailVerificationResult> {
+  const response = await fetch('/api/verify-email', {
+    method: 'POST',
+    headers: {'Content-Type': 'application/json'},
+    body: JSON.stringify({email}),
+  });
+
+  if (!response.ok) {
+    const error = await response.json();
+    throw new Error(error.error || 'Verification failed');
+  }
+
+  return response.json();
+}