Update TypeScript version and enhance ContactForm and email handling

- Upgraded TypeScript dependency from 5.7.3 to 5.8.3 for improved type checking and features.
- Modified ContactForm component to include a hidden input for the domain, capturing the current hostname.
- Updated API contact handling to log and utilize the domain information in email notifications.
- Refactored email sending functions to conditionally include the domain in the sender's address for better context.

src/pages/api/contact.ts

@@ -169,6 +169,7 @@ export const POST: APIRoute = async ({ request, clientAddress }) => {
     const message = formData.get('message')?.toString() || '';
     const disclaimer = formData.get('disclaimer')?.toString() === 'on';
     const csrfToken = formData.get('csrf_token')?.toString() || '';
+    const domain = formData.get('domain')?.toString() || '';
 
     console.log('Form data values:', {
       name,
@@ -176,6 +177,7 @@ export const POST: APIRoute = async ({ request, clientAddress }) => {
       messageLength: message.length,
       disclaimer,
       csrfToken: csrfToken ? 'present' : 'missing',
+      domain,
     });
 
     // Get user agent for logging and spam detection
@@ -255,11 +257,11 @@ export const POST: APIRoute = async ({ request, clientAddress }) => {
 
     // Send emails
     console.log('Attempting to send admin notification email');
-    const adminEmailSent = await sendAdminNotification(name, email, message, ipAddress, userAgent);
+    const adminEmailSent = await sendAdminNotification(name, email, message, ipAddress, userAgent, domain);
     console.log('Admin email sent result:', adminEmailSent);
 
     console.log('Attempting to send user confirmation email');
-    const userEmailSent = await sendUserConfirmation(name, email, message);
+    const userEmailSent = await sendUserConfirmation(name, email, message, domain);
     console.log('User email sent result:', userEmailSent);
 
     // Check if emails were sent successfully