feat: 归档L03与L09审批发布能力

- 新增统一审批中心与审批管理页面，支持流程配置、审批详情与角色/用户审批对象

- 接入聊天助手、知识库、工作流的发布与删除审批，并补齐发布态校验与快照展示

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

@@ -0,0 +1,37 @@
+<?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-approval</name>
+    <artifactId>easyflow-module-approval</artifactId>
+
+    <dependencies>
+        <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-satoken</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-common-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>tech.easyflow</groupId>
+            <artifactId>easyflow-module-system</artifactId>
+        </dependency>
+    </dependencies>
+</project>