feat: DJErp 어댑터 URL 매핑을 properties 외부화 및 동적 등록으로 변경

- DJErpAdapterMappingRegistrar 신규 추가: ContextRefreshedEvent 시점에
  dj.erp.adapter.paths(쉼표 구분)를 읽어 callApi 메서드를 동적으로 등록
  OAuth2의 FrameworkEndpointHandlerMapping과 충돌하지 않도록 exact type 비교로 선택
- DJErpApiAdapterController: 하드코딩된 @RequestMapping 제거 (Registrar에 위임)
- DJErpApiAdapterService: @Primary 추가 (Root/Servlet Context 중복 스캔 시 충돌 방지)
- applicationContext-jpa.xml: Root Context에서 @Controller/@RestController 제외 필터 추가
- authserver-servlet.xml: context:property-placeholder 및 DJErpAdapterMappingRegistrar 빈 선언 추가
- env.D/T/P.properties: dj.erp.adapter.paths 속성 추가

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

WebContent/WEB-INF/authserver-servlet.xml

@@ -17,6 +17,10 @@
 						http://www.springframework.org/schema/mvc
 							http://www.springframework.org/schema/mvc/spring-mvc.xsd">
 
+	<context:property-placeholder
+		location="/WEB-INF/properties/*.${eai.systemmode}.properties"
+		ignore-unresolvable="true" />
+
 	<context:component-scan
 		base-package="com.eactive.eai.authserver" />
 	<context:component-scan
@@ -31,4 +35,8 @@
 	<mvc:interceptors>
 		<bean class="com.eactive.eai.adapter.interceptor.HttpResponseLoggingInterceptor"/>
 	</mvc:interceptors>
+
+	<bean class="com.eactive.eai.adapter.controller.DJErpAdapterMappingRegistrar">
+		<property name="paths" value="${dj.erp.adapter.paths}" />
+	</bean>
 </beans>