fix(build): 私服 legacy 坐标分离、电梯 common/data 可编译与本地编译文档

- cloudwalk.legacy.public.version=3.7.2：result/web/serial 仍走私服；event/service 用 4.0.0
- common: spring-web；CollectionUtils for-each  Iterable 强转
- data: 反编译 DTO hashCode/import 修正（ImageRuleRef*、AcsElevatorDevice*）
- docs/build/本地编译说明.md；Maven工作区修订表补充 legacy 说明

Made-with: Cursor

maven-cw-elevator-application/cw-elevator-application-common/pom.xml

@@ -66,6 +66,10 @@
             <groupId>net.lingala.zip4j</groupId>
             <artifactId>zip4j</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-redis</artifactId>