feat(security): implement IP verification and encryption for sensitive tokens

config/database.php

@@ -156,6 +156,10 @@ function ensure_tables_exist(PDO $pdo): void {
             "CREATE TABLE IF NOT EXISTS `jira_queue_filters` (`id` INT AUTO_INCREMENT PRIMARY KEY, `filter_code` VARCHAR(50) NOT NULL UNIQUE, `filter_name` VARCHAR(120) NOT NULL, `project_key` VARCHAR(50) NULL, `jql_clause` TEXT NOT NULL, `description` VARCHAR(255) NULL, `is_active` TINYINT(1) NOT NULL DEFAULT 1, `sort_order` INT NOT NULL DEFAULT 0, `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
             // V2.0: Subtaken & Checklists
             "CREATE TABLE IF NOT EXISTS `task_subtasks` (`id` INT AUTO_INCREMENT PRIMARY KEY, `task_id` INT NOT NULL, `user_id` INT NOT NULL, `title` VARCHAR(255) NOT NULL, `is_completed` TINYINT(1) NOT NULL DEFAULT 0, `position` INT NOT NULL DEFAULT 0, `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, INDEX (`task_id`, `position`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
+            // Beveiliging: IP tracking & locatie-verificatie
+            "ALTER TABLE users ADD COLUMN last_login_ip VARCHAR(45) NULL AFTER last_jira_check_at",
+            "ALTER TABLE users ADD COLUMN last_login_at DATETIME NULL AFTER last_login_ip",
+            "CREATE TABLE IF NOT EXISTS `user_known_ips` (`id` INT AUTO_INCREMENT PRIMARY KEY, `user_id` INT NOT NULL, `ip_address` VARCHAR(45) NOT NULL, `user_agent` VARCHAR(255) NULL, `is_verified` TINYINT(1) NOT NULL DEFAULT 1, `verify_token` VARCHAR(64) NULL, `verify_token_expires_at` DATETIME NULL, `first_seen_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, `last_seen_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, UNIQUE KEY `uk_user_ip` (`user_id`, `ip_address`), INDEX (`verify_token`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci",
         ];
         foreach ($colUpgrades as $sql) {
             try {