feat(license): license 文件新增 serverUrl 字段，私有化部署自动写入

私有化模式下生成的 license 文件包含 serverUrl，SDK 通过
XuqmSDK.autoInitialize() 读取后可自动配置所有服务端点，
无需在 App 层硬编码 appKey 或 serverUrl。

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

tenant-service/src/main/java/com/xuqm/tenant/controller/AppController.java

@@ -12,6 +12,7 @@ import com.xuqm.tenant.service.AppUserClient;
 import com.xuqm.tenant.service.EmailService;
 import com.xuqm.tenant.service.FeatureServiceManager;
 import com.xuqm.tenant.service.LicenseFileCrypto;
+import com.xuqm.tenant.config.PrivateDeploymentProperties;
 import com.xuqm.tenant.service.OperationLogService;
 import jakarta.validation.Valid;
 import org.springframework.beans.factory.annotation.Value;
@@ -43,6 +44,7 @@ public class AppController {
     private final TenantRepository tenantRepository;
     private final FeatureServiceManager featureServiceManager;
     private final AppUserClient appUserClient;
+    private final PrivateDeploymentProperties deployProps;
 
     @Value("${license.public-base-url:https://auth.dev.xuqinmin.com/}")
     private String licensePublicBaseUrl;
@@ -51,13 +53,15 @@ public class AppController {
                          OperationLogService operationLogService,
                          TenantRepository tenantRepository,
                          FeatureServiceManager featureServiceManager,
-                         AppUserClient appUserClient) {
+                         AppUserClient appUserClient,
+                         PrivateDeploymentProperties deployProps) {
         this.appService = appService;
         this.emailService = emailService;
         this.operationLogService = operationLogService;
         this.tenantRepository = tenantRepository;
         this.featureServiceManager = featureServiceManager;
         this.appUserClient = appUserClient;
+        this.deployProps = deployProps;
     }
 
     @GetMapping
@@ -178,6 +182,11 @@ public class AppController {
         payload.put("appName", app.getName());
         payload.put("packageName", app.getPackageName());
         payload.put("baseUrl", normalizeBaseUrl(licensePublicBaseUrl));
+        // serverUrl is set only for private deployments; the SDK uses it to configure all service
+        // endpoints automatically via XuqmSDK.autoInitialize(). Public deployments use default endpoints.
+        if (deployProps.isPrivate()) {
+            payload.put("serverUrl", normalizeBaseUrl(licensePublicBaseUrl));
+        }
         payload.put("issuedAt", java.time.Instant.now().toString());
         String encrypted = LicenseFileCrypto.encrypt(new com.fasterxml.jackson.databind.ObjectMapper().valueToTree(payload).toString());
         String filename = sanitizeFileName(app.getName()) + ".xuqmlicense";