Implement IMAP email-to-ticket gateway

config.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+// Operational settings: edit this file over SSH, then allow the next cron/request
+// to load it. Mailbox credentials and helpdesk mappings stay in the settings page.
+return [
+    'poll_interval_seconds' => 300,
+    'messages_per_mailbox' => 50,
+    'poll_budget_seconds' => 90,
+    'imap_timeout_seconds' => 15,
+    'max_message_bytes' => 5 * 1024 * 1024,
+    'max_ticket_body_bytes' => 65535, // Cannot exceed Support's TEXT column limit.
+    'notification_cooldown_seconds' => 3600,
+    'composer_timeout_seconds' => 60,
+    'php_cli_paths' => [PHP_BINDIR . '/php' . PHP_MAJOR_VERSION . '.' . PHP_MINOR_VERSION, PHP_BINDIR . '/php'],
+    'composer_paths' => ['/usr/local/bin/composer', '/usr/bin/composer'],
+];