feat: 游玩记录多版本功能 - 支持多版本记录存储和回放 - 相同路径自动去重只保留最新 - 版本列表支持删除功能 - AI草稿箱游玩不记录历史 - iOS日期格式兼容修复

server/sql/schema.sql

@@ -156,3 +156,23 @@ CREATE TABLE IF NOT EXISTS `story_drafts` (
   CONSTRAINT `story_drafts_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE,
   CONSTRAINT `story_drafts_ibfk_2` FOREIGN KEY (`story_id`) REFERENCES `stories` (`id`) ON DELETE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='AI改写草稿表';
+
+-- ============================================
+-- 8. 游玩记录表
+-- ============================================
+CREATE TABLE IF NOT EXISTS `play_records` (
+  `id` INT NOT NULL AUTO_INCREMENT,
+  `user_id` INT NOT NULL COMMENT '用户ID',
+  `story_id` INT NOT NULL COMMENT '故事ID',
+  `ending_name` VARCHAR(100) NOT NULL COMMENT '结局名称',
+  `ending_type` VARCHAR(20) DEFAULT '' COMMENT '结局类型',
+  `path_history` JSON NOT NULL COMMENT '完整的选择路径',
+  `play_duration` INT DEFAULT 0 COMMENT '游玩时长(秒)',
+  `created_at` TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  KEY `idx_user_story` (`user_id`, `story_id`),
+  KEY `idx_user` (`user_id`),
+  KEY `idx_story` (`story_id`),
+  CONSTRAINT `play_records_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE,
+  CONSTRAINT `play_records_ibfk_2` FOREIGN KEY (`story_id`) REFERENCES `stories` (`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='游玩记录表';