feat: 添加客户管理模块

agt-module-license/agt-module-license-api/pom.xml

@@ -0,0 +1,23 @@
+<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>org.agt</groupId>
+        <artifactId>agt-module-license</artifactId>
+        <version>${revision}</version>
+    </parent>
+    <artifactId>agt-module-license-api</artifactId>
+    <packaging>jar</packaging>
+
+    <name>${project.artifactId}</name>
+    <description>
+        License 模块 API，暴露给其它模块调用
+    </description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.agt</groupId>
+            <artifactId>agt-common</artifactId>
+        </dependency>
+    </dependencies>
+</project>

agt-module-license/agt-module-license-api/src/main/java/org/agt/module/license/enums/ErrorCodeConstants.java

@@ -0,0 +1,12 @@
+package org.agt.module.license.enums;
+
+import org.agt.framework.common.exception.ErrorCode;
+
+/**
+ * @description: license 错误码枚举类
+ * @author: cyc
+ * @since: 2025-05-22
+ */
+public interface ErrorCodeConstants {
+    ErrorCode CUSTOMER_NOT_EXISTS = new ErrorCode(2000, "客户不存在");
+}