feat: auto-refresh AJAX, bouton transfert entre comptes, webhook par compte

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

processor/process_mail.php

@@ -91,5 +91,29 @@ function process_account(array $account, MailMimeParser $parser): void {
 
         // Déplace le mail vers cur/ (marque comme lu)
         rename($filePath, "/var/mail/vhosts/{$domain}/{$account['username']}/Maildir/cur/{$fileName}:2,S");
+
+        // Webhook
+        if (!empty($account['webhook_url'])) {
+            fire_webhook($account['webhook_url'], [
+                'account'    => $account['username'],
+                'email'      => $account['email'],
+                'subject'    => $subject,
+                'from'       => $from,
+                'source_id'  => $sourceId,
+                'files'      => $attachments ? count($attachments) : 0,
+                'received_at'=> date('c'),
+            ]);
+        }
     }
 }
+
+function fire_webhook(string $url, array $payload): void {
+    $ctx = stream_context_create(['http' => [
+        'method'  => 'POST',
+        'header'  => "Content-Type: application/json\r\n",
+        'content' => json_encode($payload),
+        'timeout' => 5,
+        'ignore_errors' => true,
+    ]]);
+    @file_get_contents($url, false, $ctx);
+}