chore: android kakao login

[99mini]

#️⃣연관된 이슈

📝작업 내용

• log와 try catch 수정합니다.

스크린샷 (선택)

💬리뷰 요구사항(선택)

[Copilot]

Pull Request Overview

This PR configures the Android project for Kakao login support and refactors related login error handling.

• Simplified signInWithKakao by merging token fetch and API call into one try block.
• Wrapped loginWithOAuth in a try/catch to throw a CustomError on failure.
• Updated Android Gradle build files to add the Kakao repository and correct plugin ordering.

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

File	Description
src/apis/auth/oauthHelper.ts	Merged Kakao token acquisition into main try and removed early null-check.
src/apis/auth/client.ts	Added try/catch around OAuth login and rethrows as CustomError.
android/build.gradle	Added JitPack and Kakao Nexus Maven repositories.
android/app/build.gradle	Moved com.google.gms.google-services plugin after dotenv apply.

Comments suppressed due to low confidence (1)

src/apis/auth/oauthHelper.ts:111

• Add unit tests to cover the failure path when kakaoLogin() rejects or returns null, ensuring signInWithKakao returns null and displays the alert as expected.

    token = await kakaoLogin();

[l-lyun]

확인 늦어 죄송합니다 감사합니다 👍