新增获取客服接口

keyBoard/Class/Me/VM/KBMyVM.m

@@ -83,6 +83,35 @@ NSString * const KBUserCharacterDeletedNotification = @"KBUserCharacterDeletedNo
     }];
 }
 
+- (void)fetchCustomerMailWithCompletion:(KBMyCustomerMailCompletion)completion {
+    [[KBNetworkManager shared] GET:API_USER_CUSTOMER_MAIL
+                        parameters:nil
+                           headers:nil
+              autoShowBusinessError:NO
+                        completion:^(NSDictionary *jsonOrData, NSURLResponse * _Nullable response, NSError * _Nullable error) {
+        if (error) {
+            if (completion) completion(nil, error);
+            return;
+        }
+
+        // 返回结构：{ "message":"ok", "data":"123@mail.com", "code":0 }
+        id dataObj = jsonOrData[@"data"];
+        NSString *customerMail = [dataObj isKindOfClass:[NSString class]]
+        ? [(NSString *)dataObj stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]
+        : @"";
+
+        if (customerMail.length == 0) {
+            NSError *e = [NSError errorWithDomain:KBNetworkErrorDomain
+                                             code:KBNetworkErrorInvalidResponse
+                                         userInfo:@{NSLocalizedDescriptionKey: KBLocalized(@"Invalid response")}];
+            if (completion) completion(nil, e);
+            return;
+        }
+
+        if (completion) completion(customerMail, nil);
+    }];
+}
+
 - (void)fetchCharacterListByUserWithCompletion:(KBCharacterListCompletion)completion{
     [[KBNetworkManager shared] GET:KB_API_CHARACTER_LISTBYUSER
                         parameters:nil