Fix

config/database.php

@@ -172,6 +172,9 @@ function ensure_tables_exist(PDO $pdo): void {
             "CREATE TABLE IF NOT EXISTS `audit_logs` (`id` INT AUTO_INCREMENT PRIMARY KEY, `user_id` INT NULL, `user_email` VARCHAR(191) NULL, `action` VARCHAR(64) NOT NULL, `resource_type` VARCHAR(64) NULL, `resource_id` INT NULL, `details` TEXT NULL, `ip_address` VARCHAR(45) NOT NULL, `user_agent` VARCHAR(255) NULL, `status` ENUM('SUCCESS', 'FAILED', 'WARNING', 'PENDING') NOT NULL DEFAULT 'SUCCESS', `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, INDEX (`user_id`), INDEX (`action`), INDEX (`created_at`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
             // Agenda & Verlof: Hele of meerdere dagen blokkeren (Vakantie, Vrije dag, Ziekte)
             "CREATE TABLE IF NOT EXISTS `calendar_blocks` (`id` INT AUTO_INCREMENT PRIMARY KEY, `user_id` INT NOT NULL, `start_date` DATE NOT NULL, `end_date` DATE NOT NULL, `title` VARCHAR(255) NOT NULL, `block_type` VARCHAR(50) NOT NULL DEFAULT 'VACATION', `notes` TEXT NULL, `outlook_event_id` VARCHAR(255) NULL, `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, INDEX (`user_id`, `start_date`, `end_date`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
+            // Centrale Systeeminstellingen (AI, Werkdagen, Sessiebeveiliging)
+            "CREATE TABLE IF NOT EXISTS `system_settings` (`setting_key` VARCHAR(64) PRIMARY KEY, `setting_value` LONGTEXT NULL, `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
+            "ALTER TABLE `system_settings` MODIFY COLUMN `setting_value` LONGTEXT NULL",
         ];
         foreach ($colUpgrades as $sql) {
             try {
@@ -245,8 +248,8 @@ function ensure_tables_exist(PDO $pdo): void {
                 // Pas bestaande audit logs eenmalig aan zodat de weergave klopt met de lokale tijd
                 $pdo->exec("UPDATE audit_logs SET created_at = DATE_ADD(created_at, INTERVAL 2 HOUR)");
                 $pdo->prepare("
-                    INSERT INTO system_settings (setting_key, setting_value, created_at, updated_at)
-                    VALUES ('audit_logs_tz_fixed', '1', NOW(), NOW())
+                    INSERT INTO system_settings (setting_key, setting_value, updated_at)
+                    VALUES ('audit_logs_tz_fixed', '1', NOW())
                     ON DUPLICATE KEY UPDATE setting_value = '1', updated_at = NOW()
                 ")->execute();
             }