feat: Support MySQL Session Storage #152 (#155)

## AgentScope-Java Version
1.0.1

## Description
feat: Support MySQL Session Storage (to #104 )

## Checklist

- [x]  Code has been formatted with `mvn spotless:apply`
- [x]  All tests are passing (`mvn test`)
- [x]  Javadoc comments are complete and follow project conventions
- [x] Related documentation has been updated (e.g. links, examples,
etc.)
- [x]  Code is ready for review

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: uuuyuqi

agentscope-dependencies-bom/pom.xml

@@ -199,6 +199,13 @@
                 <version>2.1.0</version>
             </dependency>
 
+            <!-- MySQL JDBC Driver -->
+            <dependency>
+                <groupId>com.mysql</groupId>
+                <artifactId>mysql-connector-j</artifactId>
+                <version>8.3.0</version>
+            </dependency>
+
             <!-- OpenTelemetry -->
             <dependency>
                 <groupId>io.opentelemetry.instrumentation</groupId>

agentscope-distribution/agentscope-all/pom.xml

@@ -79,6 +79,14 @@
             <optional>true</optional>
         </dependency>
 
+        <dependency>
+            <groupId>io.agentscope</groupId>
+            <artifactId>agentscope-extensions-session-mysql</artifactId>
+            <version>${project.version}</version>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+
         <dependency>
             <groupId>io.agentscope</groupId>
             <artifactId>agentscope-extensions-studio</artifactId>

agentscope-extensions/agentscope-extensions-session-mysql/pom.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2024-2025 the original author or authors.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ You may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+-->
+
+<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>io.agentscope</groupId>
+        <artifactId>agentscope-extensions</artifactId>
+        <version>${revision}</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <name>AgentScope Java - Extensions - Session MySQL</name>
+    <description>AgentScope Extensions - MySQL Session Storage</description>
+    <artifactId>agentscope-extensions-session-mysql</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.agentscope</groupId>
+            <artifactId>agentscope-core</artifactId>
+            <version>${revision}</version>
+        </dependency>
+
+        <!-- MySQL JDBC Driver -->
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+        </dependency>
+    </dependencies>
+</project>
+