feat: 新增 SQL 联邦查询与数据库适配底座

- 提供统一编译、逻辑表映射与单源/联邦自动路由

- 增加有界执行、查询生命周期、统计成本优化与执行分析

- 内置 MySQL 与 PostgreSQL JDBC 适配和统计采集

pom.xml

@@ -31,6 +31,7 @@
         <module>easy-agents-agent-runtime</module>
         <module>easy-agents-agui</module>
         <module>easy-agents-flow</module>
+        <module>easy-agents-federation-sql</module>
         <module>easy-agents-support</module>
     </modules>
 
@@ -49,6 +50,8 @@
         <agentscope.version>1.0.12</agentscope.version>
         <snakeyaml.version>2.6</snakeyaml.version>
         <commons-compress.version>1.28.0</commons-compress.version>
+        <calcite.version>1.42.0</calcite.version>
+        <h2.version>2.3.232</h2.version>
     </properties>
 
 
@@ -129,6 +132,19 @@
                 <version>${commons-compress.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>org.apache.calcite</groupId>
+                <artifactId>calcite-core</artifactId>
+                <version>${calcite.version}</version>
+            </dependency>
+
+            <dependency>
+                <groupId>com.h2database</groupId>
+                <artifactId>h2</artifactId>
+                <version>${h2.version}</version>
+            </dependency>
+
+
             <!--easy-agents dependency management-->
             <dependency>
                 <groupId>com.easyagents</groupId>
@@ -202,6 +218,21 @@
                 <version>${revision}</version>
             </dependency>
 
+            <dependency>
+                <groupId>com.easyagents</groupId>
+                <artifactId>easy-agents-federation-sql-core</artifactId>
+                <version>${revision}</version>
+            </dependency>
+
+            <dependency>
+                <groupId>com.easyagents</groupId>
+                <artifactId>easy-agents-federation-sql-adapter-jdbc</artifactId>
+                <version>${revision}</version>
+            </dependency>
+
+
+
+
 
             <!--image model start-->
             <dependency>