feat: 落地聊天记录异步持久化基础设施

- 新增 chatlog 模块、AnalyticalDB 公共层与 common-mq Redis Streams 实现

- 建立 Redis 热态、MySQL 热数据、AnalyticalDB 历史查询与同步链路

- 收紧聊天记录幂等、摘要时序与持久化失败语义

easyflow-modules/easyflow-module-chatlog/pom.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>tech.easyflow</groupId>
+        <artifactId>easyflow-modules</artifactId>
+        <version>${revision}</version>
+    </parent>
+
+    <name>easyflow-module-chatlog</name>
+    <artifactId>easyflow-module-chatlog</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-common-chat-protocol</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-common-analytical-db</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.mybatis-flex</groupId>
+            <artifactId>mybatis-flex-spring-boot3-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-common-base</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-common-cache</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-common-mq</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>