fix(backend): 修复 ActivityControllerTest 参数列表（补 roles 参数，解除全量测试编译阻塞）

bot 提交 5bf6c8011 给 ActivityController create/update/publish/end 增加 roles 参数，
未同步测试，导致 src/test 全量无法编译。补 null roles 恢复测试编译。

cfc-backend/src/test/java/com/etotem/cfc/integration/controller/ActivityControllerTest.java

@@ -222,7 +222,7 @@ public class ActivityControllerTest {
                 setCode(200);
             }});
 
-        Result<ActivityDTO> result = controller.create(activity, 5L, "admin");
+        Result<ActivityDTO> result = controller.create(activity, 5L, "admin", null);
         assertEquals(200, result.getCode());
         assertEquals(5L, activity.getVendorId()); // vendorId set from userId
         assertNotNull(result.getData().getId());
@@ -240,7 +240,7 @@ public class ActivityControllerTest {
                 setCode(200);
             }});
 
-        Result<ActivityDTO> result = controller.create(activity, null, "admin");
+        Result<ActivityDTO> result = controller.create(activity, null, "admin", null);
         assertEquals(200, result.getCode());
         assertNull(activity.getVendorId());
     }
@@ -257,7 +257,7 @@ public class ActivityControllerTest {
                 setCode(200);
             }});
 
-        Result<ActivityDTO> result = controller.update(activity, null, "admin");
+        Result<ActivityDTO> result = controller.update(activity, null, "admin", null);
         assertEquals(200, result.getCode());
         assertEquals("更新后的活动", result.getData().getTitle());
     }
@@ -275,7 +275,7 @@ public class ActivityControllerTest {
         Map<String, Object> params = new HashMap<>();
         params.put("id", 1);
 
-        Result<String> result = controller.publish(params, "admin");
+        Result<String> result = controller.publish(params, "admin", null);
         assertEquals(200, result.getCode());
         assertEquals("发布成功", result.getData());
     }
@@ -292,14 +292,14 @@ public class ActivityControllerTest {
         Map<String, Object> params = new HashMap<>();
         params.put("id", 999);
 
-        Result<String> result = controller.publish(params, "admin");
+        Result<String> result = controller.publish(params, "admin", null);
         assertEquals(500, result.getCode());
     }
 
     @Test
     public void publish_MissingId() {
         Map<String, Object> params = new HashMap<>();
-        Result<String> result = controller.publish(params, "admin");
+        Result<String> result = controller.publish(params, "admin", null);
         assertEquals(500, result.getCode());
         assertTrue(result.getMessage().contains("不能为空"));
     }
@@ -317,7 +317,7 @@ public class ActivityControllerTest {
         Map<String, Object> params = new HashMap<>();
         params.put("id", 1);
 
-        Result<String> result = controller.end(params, null, "admin");
+        Result<String> result = controller.end(params, null, "admin", null);
         assertEquals(200, result.getCode());
     }
 
@@ -333,14 +333,14 @@ public class ActivityControllerTest {
         Map<String, Object> params = new HashMap<>();
         params.put("id", 999);
 
-        Result<String> result = controller.end(params, null, "admin");
+        Result<String> result = controller.end(params, null, "admin", null);
         assertEquals(500, result.getCode());
     }
 
     @Test
     public void end_MissingId() {
         Map<String, Object> params = new HashMap<>();
-        Result<String> result = controller.end(params, null, "admin");
+        Result<String> result = controller.end(params, null, "admin", null);
         assertEquals(500, result.getCode());
     }
 }