Checkpoint: v3.0 - 新增训练视频教程库（分类浏览、自评系统）、训练提醒通知（多类型提醒、浏览器推送）、通知记录管理、去除冗余文字。65个测试全部通过。

drizzle/0004_exotic_randall.sql

@@ -0,0 +1,57 @@
+CREATE TABLE `notification_log` (
+	`id` int AUTO_INCREMENT NOT NULL,
+	`userId` int NOT NULL,
+	`reminderId` int,
+	`notificationType` varchar(32) NOT NULL,
+	`title` varchar(256) NOT NULL,
+	`message` text,
+	`isRead` int DEFAULT 0,
+	`createdAt` timestamp NOT NULL DEFAULT (now()),
+	CONSTRAINT `notification_log_id` PRIMARY KEY(`id`)
+);
+--> statement-breakpoint
+CREATE TABLE `training_reminders` (
+	`id` int AUTO_INCREMENT NOT NULL,
+	`userId` int NOT NULL,
+	`reminderType` varchar(32) NOT NULL,
+	`title` varchar(256) NOT NULL,
+	`message` text,
+	`timeOfDay` varchar(5) NOT NULL,
+	`daysOfWeek` json NOT NULL,
+	`isActive` int DEFAULT 1,
+	`lastTriggered` timestamp,
+	`createdAt` timestamp NOT NULL DEFAULT (now()),
+	`updatedAt` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `training_reminders_id` PRIMARY KEY(`id`)
+);
+--> statement-breakpoint
+CREATE TABLE `tutorial_progress` (
+	`id` int AUTO_INCREMENT NOT NULL,
+	`userId` int NOT NULL,
+	`tutorialId` int NOT NULL,
+	`watched` int DEFAULT 0,
+	`comparisonVideoId` int,
+	`selfScore` float,
+	`notes` text,
+	`createdAt` timestamp NOT NULL DEFAULT (now()),
+	`updatedAt` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `tutorial_progress_id` PRIMARY KEY(`id`)
+);
+--> statement-breakpoint
+CREATE TABLE `tutorial_videos` (
+	`id` int AUTO_INCREMENT NOT NULL,
+	`title` varchar(256) NOT NULL,
+	`category` varchar(64) NOT NULL,
+	`skillLevel` enum('beginner','intermediate','advanced') DEFAULT 'beginner',
+	`description` text,
+	`keyPoints` json,
+	`commonMistakes` json,
+	`videoUrl` text,
+	`thumbnailUrl` text,
+	`duration` int,
+	`sortOrder` int DEFAULT 0,
+	`isPublished` int DEFAULT 1,
+	`createdAt` timestamp NOT NULL DEFAULT (now()),
+	`updatedAt` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `tutorial_videos_id` PRIMARY KEY(`id`)
+);