[REFACTOR/#122] @JsonCreator 도입을 통한 보일러플레이트 제거

[ckkim817]

💡 Issue

• resolved: [REFACTOR] @JsonCreator 도입을 통한 보일러플레이트 제거 #122

📄 Description

• Enum 역직렬화 시 @JsonCreator를 도입해 보일러플레이트를 제거했습니다.

[Copilot]

Pull Request Overview

This PR refactors enum deserialization by introducing the @JsonCreator annotation to reduce boilerplate code and improve type safety. The changes eliminate manual string-to-enum conversions by leveraging Jackson's automatic deserialization capabilities.

Key changes:

• Added @JsonCreator annotations to enum fromValue() methods for automatic JSON deserialization
• Updated request DTOs to use enum types directly instead of strings
• Removed manual enum conversion calls throughout service and controller layers

Reviewed Changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Tag.java, SpotType.java, SpotStatus.java	Added @JsonCreator annotation to enable automatic enum deserialization
SocialType.java, Platform.java, ImageType.java, DislikeFood.java	Added @JsonCreator annotation to enable automatic enum deserialization
SpotListRequest.java, ApplySpotRequest.java	Changed field types from String to enum types with updated validation
PreferenceRequest.java, PreSignedUrlRequest.java, LoginRequest.java	Changed field types from String to enum types with updated validation
SpotService.java	Removed manual enum conversion calls, now using enum fields directly
MemberController.java, AdminController.java	Removed manual enum conversion and unused imports

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[Copilot]

The method can be simplified by directly comparing enum values instead of comparing their string names. Replace with return SpotType.CAFE.equals(spotType); for better performance and readability.

Suggested change

	return SpotType.CAFE.name().equalsIgnoreCase(spotType.name());
	return SpotType.CAFE.equals(spotType);