feat(system): 添加日期字段的JSON格式化注解

- 在TenantPackage实体类的createTime和updateTime字段上添加@JsonFormat注解
- 在TenantSubscription实体类的startTime、endTime、createTime和updateTime字段上添加@JsonFormat注解
- 在TenantSubscriptionOrder实体类的startTime、endTime、paymentTime、createTime和updateTime字段上添加@JsonFormat注解
- 所有日期字段均设置pattern为"yyyy-MM-dd HH:mm:ss"，timezone为"GMT+8"
- 统一实体类日期序列化格式，提升前后端数据交互一致性

src/main/java/com/gxwebsoft/common/system/entity/TenantPackage.java

@@ -1,6 +1,7 @@
 package com.gxwebsoft.common.system.entity;
 
 import com.baomidou.mybatisplus.annotation.*;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -66,8 +67,10 @@ public class TenantPackage implements Serializable {
     private Integer sortNumber;
 
     @Schema(description = "创建时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date createTime;
 
     @Schema(description = "修改时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date updateTime;
 }

src/main/java/com/gxwebsoft/common/system/entity/TenantSubscription.java

@@ -1,6 +1,7 @@
 package com.gxwebsoft.common.system.entity;
 
 import com.baomidou.mybatisplus.annotation.*;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -35,9 +36,11 @@ public class TenantSubscription implements Serializable {
     private Integer version;
 
     @Schema(description = "开始时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date startTime;
 
     @Schema(description = "到期时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date endTime;
 
     @Schema(description = "是否试用期")
@@ -59,9 +62,11 @@ public class TenantSubscription implements Serializable {
     private Integer status;
 
     @Schema(description = "创建时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date createTime;
 
     @Schema(description = "修改时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date updateTime;
 
     // 关联查询字段

src/main/java/com/gxwebsoft/common/system/entity/TenantSubscriptionOrder.java

@@ -1,6 +1,7 @@
 package com.gxwebsoft.common.system.entity;
 
 import com.baomidou.mybatisplus.annotation.*;
+import com.fasterxml.jackson.annotation.JsonFormat;
 import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -54,9 +55,11 @@ public class TenantSubscriptionOrder implements Serializable {
     private BigDecimal actualPrice;
 
     @Schema(description = "开始时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date startTime;
 
     @Schema(description = "到期时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date endTime;
 
     @Schema(description = "是否试用 0否 1是")
@@ -78,6 +81,7 @@ public class TenantSubscriptionOrder implements Serializable {
     private String paymentId;
 
     @Schema(description = "支付时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date paymentTime;
 
     @Schema(description = "订单状态 0待支付 1已支付 2已激活 3已取消 4已退款")
@@ -90,8 +94,10 @@ public class TenantSubscriptionOrder implements Serializable {
     private Integer userId;
 
     @Schema(description = "创建时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date createTime;
 
     @Schema(description = "修改时间")
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
     private Date updateTime;
 }