feat(project): 为项目时间字段添加日期格式化注解

- 为beginTime字段添加@JsonFormat和@DateTimeFormat注解
- 为finishTime字段添加@JsonFormat和@DateTimeFormat注解
- 统一日期格式为yyyy-MM-dd并设置时区为GMT+8

ruoyi-oa/src/main/java/com/ruoyi/oa/domain/bo/SysOaProjectBo.java

@@ -72,12 +72,16 @@ public class SysOaProjectBo extends BaseEntity {
      * 开始日期
      */
     @NotNull(message = "开始日期不能为空", groups = { AddGroup.class, EditGroup.class })
+    @JsonFormat(pattern = "yyyy-MM-dd", timezone = "GMT+8")
+    @DateTimeFormat(pattern = "yyyy-MM-dd")
     private Date beginTime;
 
     /**
      * 结束日期
      */
     @NotNull(message = "结束日期不能为空", groups = { AddGroup.class, EditGroup.class })
+    @JsonFormat(pattern = "yyyy-MM-dd", timezone = "GMT+8")
+    @DateTimeFormat(pattern = "yyyy-MM-dd")
     private Date finishTime;