refactor(be): replace gql query names with model names

[dotoleeoak]

Description

GraphQL best practices를 따르도록 query 이름을 get~ 형태에서 모델 이름으로 변경합니다. (예: getNotices => notices) https://www.apollographql.com/docs/react/data/operation-best-practices

Best practices에 따라 추후 query들도 nested로 바꿀 에정입니다.

예)

기존

getAssignmentScoreSummaries(groupId: number, assignmentId: number) {
  ...
}

변경

group(id: number) {
  assignment(id: number) {
    scoreSummaries {
      ...
    }
  }
}

---

Before submitting the PR, please make sure you do the following

• [x] Read the Contributing Guidelines
• [x] Read the Contributing Guidelines and follow the Commit Convention
• [x] Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• [x] Ideally, include relevant tests that fail without this PR but pass with it.

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Last updated at: 2025-06-04 09:02:24 CET

[w0uldy0u]

프론트에서 대응이 필요할거 같은데 이미 태스크 배정이 됐나요?

[dotoleeoak]

@w0uldy0u 프론트도 이 pr에서 수정 완료했습니다