[Fix] Calendar, Goal 도메인 API 응답 필드 변경

[soun997]

이슈 번호 (#342)

요약

• 앱에서 요구하는 형식에 맞게 API 응답 필드 변경

[Copilot]

Pull Request Overview

This PR modifies API response fields for Calendar and Goal domains to support improved app structure. The changes involve restructuring response DTOs by removing some fields from certain responses and adding others.

• Removed categoryId and calendarId from WeeklyGoalResponse while adding week field
• Added categoryId to CalendarResponse and calendarId to WeeklyGoalDetailsResponse
• Simplified MonthlyGoalListResponse by removing categoryId and calendarId fields

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
CustomWeeklyGoalRepository.java	Enhanced query to fetch additional related entities (category, relatedMonthlyGoal)
WeeklyGoalResponse.java	Restructured response fields: removed categoryId/calendarId, added week field
WeeklyGoalDetailsResponse.java	Added calendarId field to detailed response
MonthlyGoalListResponse.java	Simplified response by removing categoryId and calendarId fields
CalendarResponse.java	Added categoryId field to calendar response

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[github-actions]

LGTM 👍