feat: LocalDate 검증 추가

Author: kms152000

src/main/java/com/back/web7_9_codecrete_be/domain/plans/dto/request/PlanAddRequest.java

@@ -1,5 +1,6 @@
 package com.back.web7_9_codecrete_be.domain.plans.dto.request;
 
+import jakarta.validation.constraints.FutureOrPresent;
 import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Size;
@@ -20,5 +21,6 @@ public class PlanAddRequest {
     private String title;
 
     @NotNull(message = "날짜는 필수입니다.")
+    @FutureOrPresent(message = "날짜는 현재 또는 미래 날짜여야 합니다.")
     private LocalDate planDate;
 }

src/main/java/com/back/web7_9_codecrete_be/domain/plans/dto/request/PlanUpdateRequest.java

@@ -1,5 +1,6 @@
 package com.back.web7_9_codecrete_be.domain.plans.dto.request;
 
+import jakarta.validation.constraints.FutureOrPresent;
 import jakarta.validation.constraints.Size;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -13,5 +14,6 @@ public class PlanUpdateRequest {
     @Size(max = 100, message = "제목은 100자 이하여야 합니다.")
     private String title;
 
+    @FutureOrPresent(message = "날짜는 현재 또는 미래 날짜여야 합니다.")
     private LocalDate planDate;
 }