feat(note): 初始化笔记服务模块

- 添加笔记、频道、话题等核心数据表结构
- 创建对应的数据访问对象(DO)和MyBatis映射文件
- 配置Spring Boot应用启动类及基础依赖
- 设置Nacos服务发现与配置中心相关配置
- 添加全局异常处理机制和响应码枚举定义
- 配置RedisTemplate以支持JSON序列化存储
- 定义日志输出格式及异步写入策略
- 新增笔记状态、类型、可见性等相关枚举类
- 配置MyBatis-Plus、MySQL、Druid等数据访问组件
- 添加Maven模块结构并集成到主项目中

sql/createTable.sql

@@ -84,3 +84,66 @@ CREATE TABLE `t_role_permission_rel`
   COLLATE = utf8mb4_unicode_ci COMMENT ='用户权限表';
 
 
+-- 表：t_channel
+CREATE TABLE `t_channel`
+(
+    `id`          bigint unsigned                                          NOT NULL AUTO_INCREMENT COMMENT '主键ID',
+    `name`        varchar(12) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '频道名称',
+    `create_time` datetime                                                     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `update_time` datetime                                                     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间',
+    `is_deleted`  bit(1)                                                       NOT NULL DEFAULT b'0' COMMENT '逻辑删除(0：未删除 1：已删除)',
+    PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='频道表';
+
+-- 表：t_topic
+CREATE TABLE `t_topic`
+(
+    `id`          bigint unsigned                                          NOT NULL AUTO_INCREMENT COMMENT '主键ID',
+    `name`        varchar(12) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '话题名称',
+    `create_time` datetime                                                     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `update_time` datetime                                                     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间',
+    `is_deleted`  bit(1)                                                       NOT NULL DEFAULT b'0' COMMENT '逻辑删除(0：未删除 1：已删除)',
+    PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='话题表';
+
+-- 表：t_channel_topic_rel
+CREATE TABLE `t_channel_topic_rel`
+(
+    `id`          bigint unsigned NOT NULL AUTO_INCREMENT COMMENT '主键ID',
+    `channel_id`  bigint unsigned NOT NULL COMMENT '频道ID',
+    `topic_id`    bigint unsigned NOT NULL COMMENT '话题ID',
+    `create_time` datetime            NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `update_time` datetime            NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间',
+    PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='频道-话题关联表';
+
+-- 表：t_note
+CREATE TABLE `t_note`
+(
+    `id`               bigint unsigned                                          NOT NULL COMMENT '主键ID',
+    `title`            varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '标题',
+    `is_content_empty` bit(1)                                                       NOT NULL DEFAULT b'0' COMMENT '内容是否为空(0：不为空 1：空)',
+    `creator_id`       bigint unsigned                                          NOT NULL COMMENT '发布者ID',
+    `topic_id`         bigint unsigned                                                   DEFAULT NULL COMMENT '话题ID',
+    `topic_name`       varchar(32) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci          DEFAULT '' COMMENT '话题名称',
+    `is_top`           bit(1)                                                       NOT NULL DEFAULT b'0' COMMENT '是否置顶(0：未置顶 1：置顶)',
+    `type`             tinyint                                                            DEFAULT '0' COMMENT '类型(0：图文 1：视频)',
+    `img_uris`         varchar(660) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci         DEFAULT NULL COMMENT '笔记图片链接(逗号隔开)',
+    `video_uri`        varchar(120) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci         DEFAULT NULL COMMENT '视频链接',
+    `visible`          tinyint                                                            DEFAULT '0' COMMENT '可见范围(0：公开,所有人可见 1：仅对自己可见)',
+    `create_time`      datetime                                                     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `update_time`      datetime                                                     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间',
+    `status`           tinyint                                                   NOT NULL DEFAULT '0' COMMENT '状态(0：待审核 1：正常展示 2：被删除(逻辑删除) 3：被下架)',
+    PRIMARY KEY (`id`) USING BTREE,
+    KEY `idx_creator_id` (`creator_id`),
+    KEY `idx_topic_id` (`topic_id`),
+    KEY `idx_status` (`status`)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci COMMENT ='笔记表';