commit c0f89a933e04150465ea820d64f95f6e7eda1d5f
Author: jianghao <332515344@qq.com>
Date:   Tue Feb 24 10:49:14 2026 +0800

    feat(数据库): 添加数据库迁移脚本支持时间线功能
    
    添加V1.1.0至V1.3.0版本的数据库迁移脚本，包含核心功能优化、搜索评论通知系统以及智能功能

diff --git a/V1.1.0__core_feature_optimization.sql b/V1.1.0__core_feature_optimization.sql
new file mode 100644
index 0000000..8aaabcd
--- /dev/null
+++ b/V1.1.0__core_feature_optimization.sql
@@ -0,0 +1,194 @@
+-- =====================================================
+-- Timeline 数据库迁移脚本
+-- 版本: V1.1.0
+-- 日期: 2024
+-- 描述: 第一阶段核心功能优化 - 数据库结构变更
+-- =====================================================
+
+-- -----------------------------------------------------
+-- 1. 时间线节点排序字段
+-- 功能: 支持拖拽排序功能
+-- -----------------------------------------------------
+
+-- 为 story_item 表添加排序字段
+ALTER TABLE story_item 
+ADD COLUMN sort_order INT DEFAULT 0 COMMENT '排序值，数值越小越靠前，用于拖拽排序';
+
+-- 为排序字段添加索引，优化查询性能
+CREATE INDEX idx_story_item_sort_order 
+ON story_item(story_instance_id, sort_order, story_item_time DESC);
+
+-- -----------------------------------------------------
+-- 2. 标签系统表结构
+-- 功能: 支持为时间线节点添加标签
+-- -----------------------------------------------------
+
+-- 标签表
+CREATE TABLE IF NOT EXISTS tag (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '标签唯一标识',
+    name VARCHAR(50) NOT NULL COMMENT '标签名称',
+    color VARCHAR(20) DEFAULT '#1890ff' COMMENT '标签颜色',
+    owner_id VARCHAR(64) NOT NULL COMMENT '创建者ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    is_delete TINYINT DEFAULT 0 COMMENT '是否删除 0-否 1-是',
+    INDEX idx_tag_owner (owner_id),
+    INDEX idx_tag_name (name)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='标签表';
+
+-- 时间线节点与标签关联表
+CREATE TABLE IF NOT EXISTS story_item_tag (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    tag_id VARCHAR(64) NOT NULL COMMENT '标签ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    create_id VARCHAR(64) COMMENT '创建者ID',
+    UNIQUE KEY uk_item_tag (story_item_id, tag_id),
+    INDEX idx_tag_story_item (tag_id, story_item_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='时间线节点标签关联表';
+
+-- -----------------------------------------------------
+-- 3. 评论系统表结构
+-- 功能: 支持对时间线节点进行评论
+-- -----------------------------------------------------
+
+-- 评论表
+CREATE TABLE IF NOT EXISTS story_comment (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '评论唯一标识',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '评论用户ID',
+    parent_id VARCHAR(64) DEFAULT NULL COMMENT '父评论ID，用于回复功能',
+    reply_to_user_id VARCHAR(64) DEFAULT NULL COMMENT '回复的用户ID',
+    content TEXT NOT NULL COMMENT '评论内容',
+    like_count INT DEFAULT 0 COMMENT '点赞数',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    is_delete TINYINT DEFAULT 0 COMMENT '是否删除 0-否 1-是',
+    INDEX idx_comment_story_item (story_item_id, create_time DESC),
+    INDEX idx_comment_user (user_id),
+    INDEX idx_comment_parent (parent_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='评论表';
+
+-- -----------------------------------------------------
+-- 4. 点赞系统表结构
+-- 功能: 支持对时间线节点进行点赞
+-- -----------------------------------------------------
+
+-- 点赞表
+CREATE TABLE IF NOT EXISTS story_like (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '点赞用户ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    UNIQUE KEY uk_item_user (story_item_id, user_id),
+    INDEX idx_like_user (user_id, create_time DESC)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='点赞表';
+
+-- -----------------------------------------------------
+-- 5. 收藏系统表结构
+-- 功能: 支持收藏时间线节点
+-- -----------------------------------------------------
+
+-- 收藏表
+CREATE TABLE IF NOT EXISTS story_favorite (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '收藏记录唯一标识',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '收藏用户ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    UNIQUE KEY uk_item_user (story_item_id, user_id),
+    INDEX idx_favorite_user (user_id, create_time DESC)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='收藏表';
+
+-- -----------------------------------------------------
+-- 6. 消息通知表结构
+-- 功能: 支持系统消息推送
+-- -----------------------------------------------------
+
+-- 消息通知表
+CREATE TABLE IF NOT EXISTS notification (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '消息唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '接收用户ID',
+    type VARCHAR(20) NOT NULL COMMENT '消息类型: COMMENT/LIKE/MENTION/INVITE/SYSTEM',
+    title VARCHAR(200) NOT NULL COMMENT '消息标题',
+    content TEXT COMMENT '消息内容',
+    related_id VARCHAR(64) COMMENT '关联ID(评论ID/节点ID等)',
+    related_type VARCHAR(20) COMMENT '关联类型',
+    sender_id VARCHAR(64) COMMENT '发送者ID',
+    sender_name VARCHAR(100) COMMENT '发送者名称',
+    sender_avatar VARCHAR(500) COMMENT '发送者头像',
+    is_read TINYINT DEFAULT 0 COMMENT '是否已读 0-未读 1-已读',
+    read_time DATETIME COMMENT '阅读时间',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    INDEX idx_notification_user (user_id, is_read, create_time DESC),
+    INDEX idx_notification_type (type)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='消息通知表';
+
+-- -----------------------------------------------------
+-- 7. 操作历史记录表
+-- 功能: 支持撤销/重做功能
+-- -----------------------------------------------------
+
+-- 操作历史表
+CREATE TABLE IF NOT EXISTS operation_history (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '记录唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '操作用户ID',
+    story_id VARCHAR(64) COMMENT '故事ID',
+    operation_type VARCHAR(20) NOT NULL COMMENT '操作类型: CREATE/UPDATE/DELETE/REORDER',
+    target_type VARCHAR(20) NOT NULL COMMENT '目标类型: STORY/STORY_ITEM',
+    target_id VARCHAR(64) NOT NULL COMMENT '目标ID',
+    before_data JSON COMMENT '操作前数据快照',
+    after_data JSON COMMENT '操作后数据快照',
+    description VARCHAR(200) COMMENT '操作描述',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    INDEX idx_history_user_story (user_id, story_id, create_time DESC),
+    INDEX idx_history_target (target_type, target_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='操作历史记录表';
+
+-- -----------------------------------------------------
+-- 8. 优化现有表索引
+-- 功能: 提升查询性能
+-- -----------------------------------------------------
+
+-- 为 story_item 表添加复合索引，优化时间线查询
+CREATE INDEX idx_story_item_time_query 
+ON story_item(story_instance_id, is_delete, story_item_time DESC);
+
+-- 为 story_permission 表添加索引
+CREATE INDEX idx_story_permission_user 
+ON story_permission(user_id, permission_type);
+
+-- -----------------------------------------------------
+-- 数据迁移说明
+-- -----------------------------------------------------
+
+-- 1. sort_order 字段默认值为 0，现有数据无需迁移
+-- 2. 新表均为空表，无需数据迁移
+-- 3. 建议在低峰期执行此脚本
+
+-- -----------------------------------------------------
+-- 回滚脚本 (如需回滚，请执行以下语句)
+-- -----------------------------------------------------
+
+/*
+-- 删除新增字段
+ALTER TABLE story_item DROP COLUMN sort_order;
+
+-- 删除新增索引
+DROP INDEX idx_story_item_sort_order ON story_item;
+DROP INDEX idx_story_item_time_query ON story_item;
+DROP INDEX idx_story_permission_user ON story_permission;
+
+-- 删除新增表
+DROP TABLE IF EXISTS operation_history;
+DROP TABLE IF EXISTS notification;
+DROP TABLE IF EXISTS story_favorite;
+DROP TABLE IF EXISTS story_like;
+DROP TABLE IF EXISTS story_comment;
+DROP TABLE IF EXISTS story_item_tag;
+DROP TABLE IF EXISTS tag;
+*/
diff --git a/V1.2.0__search_comment_notification.sql b/V1.2.0__search_comment_notification.sql
new file mode 100644
index 0000000..5ba1aab
--- /dev/null
+++ b/V1.2.0__search_comment_notification.sql
@@ -0,0 +1,230 @@
+-- =====================================================
+-- Timeline 数据库迁移脚本
+-- 版本: V1.2.0
+-- 日期: 2024
+-- 描述: 第二阶段功能增强 - 搜索、标签、评论、通知系统
+-- =====================================================
+
+-- -----------------------------------------------------
+-- 1. 标签系统表结构（如已存在则跳过）
+-- -----------------------------------------------------
+
+-- 标签表
+CREATE TABLE IF NOT EXISTS tag (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '标签唯一标识',
+    name VARCHAR(50) NOT NULL COMMENT '标签名称',
+    color VARCHAR(20) DEFAULT '#1890ff' COMMENT '标签颜色',
+    owner_id VARCHAR(64) NOT NULL COMMENT '创建者ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    is_delete TINYINT DEFAULT 0 COMMENT '是否删除 0-否 1-是',
+    INDEX idx_tag_owner (owner_id),
+    INDEX idx_tag_name (name)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='标签表';
+
+-- 时间线节点与标签关联表
+CREATE TABLE IF NOT EXISTS story_item_tag (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    tag_id VARCHAR(64) NOT NULL COMMENT '标签ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    create_id VARCHAR(64) COMMENT '创建者ID',
+    UNIQUE KEY uk_item_tag (story_item_id, tag_id),
+    INDEX idx_tag_story_item (tag_id, story_item_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='时间线节点标签关联表';
+
+-- -----------------------------------------------------
+-- 2. 评论系统表结构
+-- -----------------------------------------------------
+
+-- 评论表
+CREATE TABLE IF NOT EXISTS story_comment (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '评论唯一标识',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '评论用户ID',
+    parent_id VARCHAR(64) DEFAULT NULL COMMENT '父评论ID，用于回复功能',
+    reply_to_user_id VARCHAR(64) DEFAULT NULL COMMENT '回复的用户ID',
+    content TEXT NOT NULL COMMENT '评论内容',
+    like_count INT DEFAULT 0 COMMENT '点赞数',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    is_delete TINYINT DEFAULT 0 COMMENT '是否删除 0-否 1-是',
+    INDEX idx_comment_story_item (story_item_id, create_time DESC),
+    INDEX idx_comment_user (user_id),
+    INDEX idx_comment_parent (parent_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='评论表';
+
+-- -----------------------------------------------------
+-- 3. 点赞系统表结构
+-- -----------------------------------------------------
+
+-- 点赞表（节点点赞）
+CREATE TABLE IF NOT EXISTS story_item_like (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '点赞用户ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    UNIQUE KEY uk_item_user (story_item_id, user_id),
+    INDEX idx_like_user (user_id, create_time DESC)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='节点点赞表';
+
+-- 评论点赞表
+CREATE TABLE IF NOT EXISTS comment_like (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    comment_id VARCHAR(64) NOT NULL COMMENT '评论ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '点赞用户ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    UNIQUE KEY uk_comment_user (comment_id, user_id),
+    INDEX idx_comment_like_user (user_id, create_time DESC)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='评论点赞表';
+
+-- -----------------------------------------------------
+-- 4. 收藏系统表结构
+-- -----------------------------------------------------
+
+-- 收藏表
+CREATE TABLE IF NOT EXISTS story_item_favorite (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '收藏记录唯一标识',
+    story_item_id VARCHAR(64) NOT NULL COMMENT '时间线节点ID',
+    user_id VARCHAR(64) NOT NULL COMMENT '收藏用户ID',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    UNIQUE KEY uk_item_user (story_item_id, user_id),
+    INDEX idx_favorite_user (user_id, create_time DESC)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='收藏表';
+
+-- -----------------------------------------------------
+-- 5. 消息通知系统表结构
+-- -----------------------------------------------------
+
+-- 消息通知表
+CREATE TABLE IF NOT EXISTS notification (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '消息唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '接收用户ID',
+    type VARCHAR(20) NOT NULL COMMENT '消息类型: COMMENT/LIKE/MENTION/INVITE/SYSTEM',
+    title VARCHAR(200) NOT NULL COMMENT '消息标题',
+    content TEXT COMMENT '消息内容',
+    related_id VARCHAR(64) COMMENT '关联ID(评论ID/节点ID等)',
+    related_type VARCHAR(20) COMMENT '关联类型: STORY_ITEM/COMMENT/STORY',
+    sender_id VARCHAR(64) COMMENT '发送者ID',
+    sender_name VARCHAR(100) COMMENT '发送者名称',
+    sender_avatar VARCHAR(500) COMMENT '发送者头像',
+    is_read TINYINT DEFAULT 0 COMMENT '是否已读 0-未读 1-已读',
+    read_time DATETIME COMMENT '阅读时间',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    INDEX idx_notification_user (user_id, is_read, create_time DESC),
+    INDEX idx_notification_type (type)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='消息通知表';
+
+-- -----------------------------------------------------
+-- 6. 操作历史记录表（支持撤销/重做）
+-- -----------------------------------------------------
+
+-- 操作历史表
+CREATE TABLE IF NOT EXISTS operation_history (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '记录唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '操作用户ID',
+    story_id VARCHAR(64) COMMENT '故事ID',
+    operation_type VARCHAR(20) NOT NULL COMMENT '操作类型: CREATE/UPDATE/DELETE/REORDER',
+    target_type VARCHAR(20) NOT NULL COMMENT '目标类型: STORY/STORY_ITEM',
+    target_id VARCHAR(64) NOT NULL COMMENT '目标ID',
+    before_data JSON COMMENT '操作前数据快照',
+    after_data JSON COMMENT '操作后数据快照',
+    description VARCHAR(200) COMMENT '操作描述',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    INDEX idx_history_user_story (user_id, story_id, create_time DESC),
+    INDEX idx_history_target (target_type, target_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='操作历史记录表';
+
+-- -----------------------------------------------------
+-- 7. 用户消息设置表
+-- -----------------------------------------------------
+
+-- 用户消息设置表
+CREATE TABLE IF NOT EXISTS user_notification_setting (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    user_id VARCHAR(64) UNIQUE NOT NULL COMMENT '用户ID',
+    comment_notify TINYINT DEFAULT 1 COMMENT '评论通知 0-关闭 1-开启',
+    like_notify TINYINT DEFAULT 1 COMMENT '点赞通知 0-关闭 1-开启',
+    mention_notify TINYINT DEFAULT 1 COMMENT '@提及通知 0-关闭 1-开启',
+    invite_notify TINYINT DEFAULT 1 COMMENT '邀请通知 0-关闭 1-开启',
+    system_notify TINYINT DEFAULT 1 COMMENT '系统通知 0-关闭 1-开启',
+    email_notify TINYINT DEFAULT 0 COMMENT '邮件通知 0-关闭 1-开启',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户消息设置表';
+
+-- -----------------------------------------------------
+-- 8. @提及记录表
+-- -----------------------------------------------------
+
+-- @提及表
+CREATE TABLE IF NOT EXISTS mention (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '提及记录唯一标识',
+    from_user_id VARCHAR(64) NOT NULL COMMENT '提及者ID',
+    to_user_id VARCHAR(64) NOT NULL COMMENT '被提及者ID',
+    related_type VARCHAR(20) NOT NULL COMMENT '关联类型: COMMENT/STORY_ITEM',
+    related_id VARCHAR(64) NOT NULL COMMENT '关联ID',
+    is_notified TINYINT DEFAULT 0 COMMENT '是否已发送通知 0-否 1-是',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    INDEX idx_mention_to (to_user_id, is_notified, create_time DESC),
+    INDEX idx_mention_related (related_type, related_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='@提及记录表';
+
+-- -----------------------------------------------------
+-- 9. 统计字段更新触发器
+-- -----------------------------------------------------
+
+-- 为 story_item 表添加统计字段
+ALTER TABLE story_item 
+ADD COLUMN comment_count INT DEFAULT 0 COMMENT '评论数',
+ADD COLUMN like_count INT DEFAULT 0 COMMENT '点赞数',
+ADD COLUMN favorite_count INT DEFAULT 0 COMMENT '收藏数';
+
+-- -----------------------------------------------------
+-- 10. 索引优化
+-- -----------------------------------------------------
+
+-- 为 story_item 表添加复合索引
+CREATE INDEX IF NOT EXISTS idx_story_item_stats 
+ON story_item(story_instance_id, is_delete, like_count DESC, create_time DESC);
+
+-- -----------------------------------------------------
+-- 数据迁移说明
+-- -----------------------------------------------------
+
+-- 1. 新表均为空表，无需数据迁移
+-- 2. 统计字段默认值为 0，现有数据无需迁移
+-- 3. 建议在低峰期执行此脚本
+-- 4. Elasticsearch 索引需要单独创建和同步
+
+-- -----------------------------------------------------
+-- 回滚脚本 (如需回滚，请执行以下语句)
+-- -----------------------------------------------------
+
+/*
+-- 删除新增字段
+ALTER TABLE story_item DROP COLUMN comment_count;
+ALTER TABLE story_item DROP COLUMN like_count;
+ALTER TABLE story_item DROP COLUMN favorite_count;
+
+-- 删除新增索引
+DROP INDEX IF EXISTS idx_story_item_stats ON story_item;
+
+-- 删除新增表
+DROP TABLE IF EXISTS mention;
+DROP TABLE IF EXISTS user_notification_setting;
+DROP TABLE IF EXISTS operation_history;
+DROP TABLE IF EXISTS notification;
+DROP TABLE IF EXISTS story_item_favorite;
+DROP TABLE IF EXISTS comment_like;
+DROP TABLE IF EXISTS story_item_like;
+DROP TABLE IF EXISTS story_comment;
+DROP TABLE IF EXISTS story_item_tag;
+DROP TABLE IF EXISTS tag;
+*/
diff --git a/V1.3.0__smart_features.sql b/V1.3.0__smart_features.sql
new file mode 100644
index 0000000..e86fb25
--- /dev/null
+++ b/V1.3.0__smart_features.sql
@@ -0,0 +1,161 @@
+-- =====================================================
+-- Timeline 数据库迁移脚本
+-- 版本: V1.3.0
+-- 日期: 2024
+-- 描述: 第三阶段智能化功能 - 提醒系统、数据分析
+-- =====================================================
+
+-- -----------------------------------------------------
+-- 1. 提醒系统表结构
+-- -----------------------------------------------------
+
+-- 提醒表
+CREATE TABLE IF NOT EXISTS reminder (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '提醒唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '用户ID',
+    type VARCHAR(20) NOT NULL COMMENT '提醒类型: RECORD/MEMORY/ANNIVERSARY/CUSTOM',
+    title VARCHAR(200) NOT NULL COMMENT '提醒标题',
+    content TEXT COMMENT '提醒内容',
+    story_instance_id VARCHAR(64) COMMENT '关联的故事ID',
+    story_item_id VARCHAR(64) COMMENT '关联的节点ID',
+    remind_time DATETIME NOT NULL COMMENT '提醒时间',
+    repeat_type VARCHAR(20) DEFAULT 'NONE' COMMENT '重复类型: NONE/DAILY/WEEKLY/MONTHLY/YEARLY',
+    is_sent TINYINT DEFAULT 0 COMMENT '是否已发送 0-否 1-是',
+    sent_time DATETIME COMMENT '发送时间',
+    is_enabled TINYINT DEFAULT 1 COMMENT '是否启用 0-禁用 1-启用',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    INDEX idx_reminder_user (user_id, is_enabled, remind_time),
+    INDEX idx_reminder_pending (is_sent, remind_time),
+    INDEX idx_reminder_type (type)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='提醒表';
+
+-- -----------------------------------------------------
+-- 2. 纪念日表结构
+-- -----------------------------------------------------
+
+-- 纪念日表
+CREATE TABLE IF NOT EXISTS anniversary (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '纪念日唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '用户ID',
+    title VARCHAR(200) NOT NULL COMMENT '纪念日标题',
+    description TEXT COMMENT '描述',
+    anniversary_date DATE NOT NULL COMMENT '纪念日日期',
+    repeat_type VARCHAR(20) DEFAULT 'YEARLY' COMMENT '重复类型: YEARLY/MONTHLY/ONCE',
+    remind_days INT DEFAULT 1 COMMENT '提前提醒天数',
+    is_lunar TINYINT DEFAULT 0 COMMENT '是否农历 0-公历 1-农历',
+    is_enabled TINYINT DEFAULT 1 COMMENT '是否启用',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    is_delete TINYINT DEFAULT 0 COMMENT '是否删除',
+    INDEX idx_anniversary_user (user_id, is_delete),
+    INDEX idx_anniversary_date (anniversary_date)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='纪念日表';
+
+-- -----------------------------------------------------
+-- 3. 用户统计缓存表
+-- -----------------------------------------------------
+
+-- 用户统计缓存表
+CREATE TABLE IF NOT EXISTS user_stats_cache (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    user_id VARCHAR(64) UNIQUE NOT NULL COMMENT '用户ID',
+    total_moments BIGINT DEFAULT 0 COMMENT '总时刻数',
+    total_media BIGINT DEFAULT 0 COMMENT '总媒体数',
+    total_stories BIGINT DEFAULT 0 COMMENT '总故事数',
+    total_comments BIGINT DEFAULT 0 COMMENT '总评论数',
+    total_likes BIGINT DEFAULT 0 COMMENT '总点赞数',
+    consecutive_days INT DEFAULT 0 COMMENT '连续记录天数',
+    max_consecutive_days INT DEFAULT 0 COMMENT '最长连续记录天数',
+    last_active_date DATE COMMENT '最后活跃日期',
+    stats_json JSON COMMENT '详细统计数据JSON',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    INDEX idx_stats_user (user_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户统计缓存表';
+
+-- -----------------------------------------------------
+-- 4. 年度报告表
+-- -----------------------------------------------------
+
+-- 年度报告表
+CREATE TABLE IF NOT EXISTS yearly_report (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '报告唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '用户ID',
+    year INT NOT NULL COMMENT '年份',
+    total_moments BIGINT DEFAULT 0 COMMENT '年度时刻数',
+    total_media BIGINT DEFAULT 0 COMMENT '年度媒体数',
+    most_active_month VARCHAR(7) COMMENT '最活跃月份',
+    most_active_day DATE COMMENT '最活跃日期',
+    top_location VARCHAR(200) COMMENT '最常去地点',
+    top_tag VARCHAR(50) COMMENT '最常用标签',
+    monthly_breakdown JSON COMMENT '月度明细JSON',
+    insights JSON COMMENT 'AI洞察JSON',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    UNIQUE KEY uk_user_year (user_id, year),
+    INDEX idx_report_user (user_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='年度报告表';
+
+-- -----------------------------------------------------
+-- 5. 智能填充历史表
+-- -----------------------------------------------------
+
+-- 智能填充历史表
+CREATE TABLE IF NOT EXISTS smart_fill_history (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    instance_id VARCHAR(64) UNIQUE NOT NULL COMMENT '记录唯一标识',
+    user_id VARCHAR(64) NOT NULL COMMENT '用户ID',
+    file_name VARCHAR(500) COMMENT '文件名',
+    inferred_time DATETIME COMMENT '推断的时间',
+    time_source VARCHAR(20) COMMENT '时间来源',
+    time_confidence INT COMMENT '时间置信度',
+    inferred_location VARCHAR(200) COMMENT '推断的地点',
+    location_source VARCHAR(20) COMMENT '地点来源',
+    location_confidence INT COMMENT '地点置信度',
+    is_applied TINYINT DEFAULT 0 COMMENT '是否已应用 0-否 1-是',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    INDEX idx_fill_user (user_id, create_time DESC)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='智能填充历史表';
+
+-- -----------------------------------------------------
+-- 6. 定时任务配置表
+-- -----------------------------------------------------
+
+-- 定时任务配置表
+CREATE TABLE IF NOT EXISTS scheduled_task (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
+    task_name VARCHAR(100) UNIQUE NOT NULL COMMENT '任务名称',
+    task_type VARCHAR(50) NOT NULL COMMENT '任务类型',
+    cron_expression VARCHAR(100) COMMENT 'Cron表达式',
+    is_enabled TINYINT DEFAULT 1 COMMENT '是否启用',
+    last_execute_time DATETIME COMMENT '最后执行时间',
+    next_execute_time DATETIME COMMENT '下次执行时间',
+    execute_count BIGINT DEFAULT 0 COMMENT '执行次数',
+    last_status VARCHAR(20) COMMENT '最后执行状态',
+    last_error TEXT COMMENT '最后错误信息',
+    create_time DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    update_time DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间'
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='定时任务配置表';
+
+-- 初始化定时任务
+INSERT INTO scheduled_task (task_name, task_type, cron_expression, is_enabled) VALUES
+('MEMORY_REMINDER_TASK', 'REMINDER', '0 0 8 * * ?', 1),
+('STATS_CACHE_TASK', 'STATS', '0 0 3 * * ?', 1),
+('YEARLY_REPORT_TASK', 'REPORT', '0 0 0 1 1 ?', 1)
+ON DUPLICATE KEY UPDATE task_name = task_name;
+
+-- -----------------------------------------------------
+-- 回滚脚本 (如需回滚，请执行以下语句)
+-- -----------------------------------------------------
+
+/*
+-- 删除新增表
+DROP TABLE IF EXISTS scheduled_task;
+DROP TABLE IF EXISTS smart_fill_history;
+DROP TABLE IF EXISTS yearly_report;
+DROP TABLE IF EXISTS user_stats_cache;
+DROP TABLE IF EXISTS anniversary;
+DROP TABLE IF EXISTS reminder;
+*/
diff --git a/timeline.session.sql b/timeline.session.sql
new file mode 100644
index 0000000..cbfb0e6
--- /dev/null
+++ b/timeline.session.sql
@@ -0,0 +1,5 @@
+ALTER TABLE story_item ADD COLUMN share_id VARCHAR(64) DEFAULT NULL COMMENT '分享ID';
+ALTER TABLE `story_item`
+ADD COLUMN `video_url` VARCHAR(64) COMMENT '视频文件 Instance ID',
+ADD COLUMN `duration` BIGINT COMMENT '视频时长(秒)',
+ADD COLUMN `thumbnail_url` VARCHAR(64) COMMENT '视频封面 Instance ID';
\ No newline at end of file