feat(user): 新增客服邮箱获取接口

通过 @Value 注入 customer_mail 配置，提供 /user/customerMail 端点供前端获取客服邮箱地址。

src/main/java/com/yolo/keyborad/controller/UserController.java

@@ -22,6 +22,7 @@ import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.annotation.Resource;
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.web.bind.annotation.*;
 
 import java.text.SimpleDateFormat;
@@ -49,6 +50,9 @@ public class UserController {
 
     @Resource
     private KeyboardUserInviteCodesService inviteCodesService;
+
+    @Value("${customer_mail}")
+    private String customerMail;
     /**
      * 苹果登录
      *
@@ -145,4 +149,10 @@ public class UserController {
         long userId = StpUtil.getLoginIdAsLong();
         return ResultUtils.success( inviteCodesService.getUserInviteCode(userId));
     }
-}
+
+    @GetMapping("/customerMail")
+    @Operation(summary = "获取客服邮箱", description = "获取 customer_mail 配置的客服邮箱地址")
+    public BaseResponse<String> getCustomerMail() {
+        return ResultUtils.success(customerMail);
+    }
+}

src/main/resources/application.yml

@@ -59,4 +59,6 @@ mybatis-plus:
 appid: loveKeyboard
 appsecret: kZJM39HYvhxwbJkG1fmquQRVkQiLAh2H
 
-mail_access_token: mlsn.3b1a3387055e0f53c0869cad91c6acad5401e9dcb4511ace2f82ab31d897fba6
+mail_access_token: mlsn.3b1a3387055e0f53c0869cad91c6acad5401e9dcb4511ace2f82ab31d897fba6
+
+customer_mail: 123@mail.com