Feature: Plugin UI, event hooks, DB notifications, web push, webhook retry, games pages, rate limiting, tests

- Plugin admin UI: enable/disable per plugin with config forms
- Event hooks system: HookManager with on/off/emit for plugin events
- Database notifications: persistent via WebsiteNotification table + Redis pub/sub
- Notification preferences: per-user settings with API endpoints
- Web Push API: browser push notification subscription
- Webhook retry: 3 attempts with exponential backoff (1s/3s/9s) + delivery logs
- Webhook test button + paginated delivery log viewer
- Games: rank/challenge/reward admin pages
- Games: public frontend leaderboard
- Rate limiting: search API (30/min), notification stream dedup
- Unit tests: 28 new tests (registry, notifications, webhooks)
- Prisma migration 0017: website_notifications, website_notification_preferences, website_webhook_logs

prisma/migrations/0017_notifications_webhooks.sql

@@ -0,0 +1,48 @@
+-- Notifications
+CREATE TABLE IF NOT EXISTS `website_notifications` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `user_id` BIGINT UNSIGNED NOT NULL,
+  `type` VARCHAR(50) NOT NULL,
+  `title` VARCHAR(255) NOT NULL,
+  `body` TEXT DEFAULT NULL,
+  `icon` VARCHAR(50) DEFAULT NULL,
+  `link` VARCHAR(500) DEFAULT NULL,
+  `read` TINYINT(1) NOT NULL DEFAULT 0,
+  `created_at` TIMESTAMP(0) DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  INDEX `idx_user_read` (`user_id`, `read`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Notification preferences
+CREATE TABLE IF NOT EXISTS `website_notification_preferences` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `user_id` BIGINT UNSIGNED NOT NULL,
+  `email_enabled` TINYINT(1) NOT NULL DEFAULT 1,
+  `push_enabled` TINYINT(1) NOT NULL DEFAULT 1,
+  `friend_request` TINYINT(1) NOT NULL DEFAULT 1,
+  `messages` TINYINT(1) NOT NULL DEFAULT 1,
+  `guild_invite` TINYINT(1) NOT NULL DEFAULT 1,
+  `events` TINYINT(1) NOT NULL DEFAULT 1,
+  `alerts` TINYINT(1) NOT NULL DEFAULT 1,
+  `achievements` TINYINT(1) NOT NULL DEFAULT 1,
+  `radio` TINYINT(1) NOT NULL DEFAULT 1,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uq_user` (`user_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Webhook delivery logs
+CREATE TABLE IF NOT EXISTS `website_webhook_logs` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `webhook_id` VARCHAR(100) NOT NULL,
+  `url` VARCHAR(500) NOT NULL,
+  `event` VARCHAR(100) NOT NULL,
+  `status` INT NOT NULL DEFAULT 0,
+  `response` TEXT DEFAULT NULL,
+  `duration` INT NOT NULL DEFAULT 0,
+  `success` TINYINT(1) NOT NULL DEFAULT 0,
+  `created_at` TIMESTAMP(0) DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  INDEX `idx_webhook_logs` (`webhook_id`, `created_at`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- Migration tracking