fix: connect overseas lastleg to print service

deploy/docker-compose.overseas.yml

@@ -65,6 +65,8 @@ services:
       FIRSTLEG_EVENT_BRIDGE_URL: ${CN_EVENT_BRIDGE_TARGET_URL:-http://event-bridge-cn:9312}
       DOMESTIC_WAREHOUSE_URL: ${DOMESTIC_WAREHOUSE_URL}
       FILE_SERVICE_URL: ${FILE_SERVICE_URL}
+      # Print 注册在国内 Nacos namespace；海外服务通过共享 infra-network 的 Docker DNS 直连。
+      PRINT_SERVICE_URL: ${PRINT_SERVICE_URL:-http://print:9207}
       WAREHOUSE_OVERSEAS_SERVICE_URL: ${WAREHOUSE_OVERSEAS_SERVICE_URL:-http://warehouse-overseas-service:9305}
 
   warehouse-overseas-service:

lastleg-service/src/test/java/com/baiyue/lastleg/controller/Phase4BrowserApiBoundaryTest.java

@@ -72,6 +72,14 @@ class Phase4BrowserApiBoundaryTest {
         assertTrue(yaml.contains("enabled: ${LASTLEG_SMART_DISPATCH_API_ENABLED:true}"));
     }
 
+    @Test
+    void overseasLastlegReachesDomesticPrintThroughSharedInfrastructureNetwork() throws Exception {
+        Path composePath = Path.of("deploy/docker-compose.overseas.yml");
+        if (!Files.exists(composePath)) composePath = Path.of("..").resolve(composePath);
+        String compose = Files.readString(composePath);
+        assertTrue(compose.contains("PRINT_SERVICE_URL: ${PRINT_SERVICE_URL:-http://print:9207}"));
+    }
+
     @Test
     void smartDispatchOnlyExposesCandidatePreArrangeAndDraftLifecycleEndpoints() {
         ConditionalOnProperty condition = SmartDispatchController.class.getAnnotation(ConditionalOnProperty.class);