feat(chat): 实现人脸智能聊天核心功能

- 新增小程序人脸聊天控制器 AppChatController，支持会话创建、消息收发、历史查询及会话关闭
- 集成智谱 GLM 模型客户端 GlmClient，支持流式文本生成与回调
- 新增聊天会话与消息实体类及 MyBatis 映射，实现数据持久化
- 提供 FaceChatService 接口及实现，封装聊天业务逻辑包括同步/流式消息发送
- 引入 zai-sdk 依赖以支持调用智谱 AI 大模型能力
- 支持基于人脸 ID 的唯一会话管理与用户权限校验
- 消息记录包含角色、内容、追踪 ID 及延迟信息，便于调试与分析

src/main/resources/mapper/FaceChatConversationMapper.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.ycwl.basic.mapper.FaceChatConversationMapper">
+
+    <resultMap id="BaseResultMap" type="com.ycwl.basic.model.mobile.chat.entity.FaceChatConversationEntity">
+        <id column="id" property="id"/>
+        <result column="face_id" property="faceId"/>
+        <result column="member_id" property="memberId"/>
+        <result column="status" property="status"/>
+        <result column="model" property="model"/>
+        <result column="created_at" property="createdAt"/>
+        <result column="updated_at" property="updatedAt"/>
+    </resultMap>
+
+    <select id="findByFaceId" resultMap="BaseResultMap">
+        select id, face_id, member_id, status, model, created_at, updated_at
+        from face_chat_conversation
+        where face_id = #{faceId}
+        limit 1
+    </select>
+
+    <select id="getById" resultMap="BaseResultMap">
+        select id, face_id, member_id, status, model, created_at, updated_at
+        from face_chat_conversation
+        where id = #{id}
+        limit 1
+    </select>
+
+    <insert id="insert">
+        insert into face_chat_conversation
+        (id, face_id, member_id, status, model, created_at, updated_at)
+        values
+        (#{id}, #{faceId}, #{memberId}, #{status}, #{model}, now(), now())
+    </insert>
+
+    <update id="updateStatus">
+        update face_chat_conversation
+        set status = #{status}, updated_at = now()
+        where id = #{id}
+    </update>
+</mapper>

src/main/resources/mapper/FaceChatMessageMapper.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.ycwl.basic.mapper.FaceChatMessageMapper">
+
+    <resultMap id="BaseResultMap" type="com.ycwl.basic.model.mobile.chat.entity.FaceChatMessageEntity">
+        <id column="id" property="id"/>
+        <result column="conversation_id" property="conversationId"/>
+        <result column="face_id" property="faceId"/>
+        <result column="seq" property="seq"/>
+        <result column="role" property="role"/>
+        <result column="content" property="content"/>
+        <result column="trace_id" property="traceId"/>
+        <result column="latency_ms" property="latencyMs"/>
+        <result column="created_at" property="createdAt"/>
+    </resultMap>
+
+    <select id="maxSeqForUpdate" resultType="java.lang.Integer">
+        select ifnull(max(seq), 0)
+        from face_chat_message
+        where conversation_id = #{conversationId}
+        for update
+    </select>
+
+    <insert id="insert">
+        insert into face_chat_message
+        (id, conversation_id, face_id, seq, role, content, trace_id, latency_ms, created_at)
+        values
+        (#{id}, #{conversationId}, #{faceId}, #{seq}, #{role}, #{content}, #{traceId}, #{latencyMs}, now())
+    </insert>
+
+    <select id="listByConversation" resultMap="BaseResultMap">
+        select id, conversation_id, face_id, seq, role, content, trace_id, latency_ms, created_at
+        from face_chat_message
+        where conversation_id = #{conversationId}
+        <if test="cursor != null">
+            and seq &gt; #{cursor}
+        </if>
+        order by seq asc
+        <if test="limit != null">
+            limit #{limit}
+        </if>
+    </select>
+
+    <select id="listRecentByConversation" resultMap="BaseResultMap">
+        select id, conversation_id, face_id, seq, role, content, trace_id, latency_ms, created_at
+        from face_chat_message
+        where conversation_id = #{conversationId}
+        order by seq desc
+        <if test="limit != null">
+            limit #{limit}
+        </if>
+    </select>
+</mapper>