Add sortOrder field to Term and update terms retrieval sorting logic

[jeyongsong]

This pull request introduces a new sortOrder field to the Term entity and updates the sorting logic in the TermsService to use this field. These changes improve how terms are ordered when retrieved, allowing for more flexible and explicit ordering.

Entity model update:

• Added a new sortOrder field to the Term entity in Term.kt, which enables explicit ordering of terms.

Service logic update:

• Updated the sorting logic in TermsService.kt to use the new sortOrder field, replacing the previous sorting by required and code.

[jeyongsong]

이거 득호책임님이 머지하시고 데이터 대응도 해주세용~~ ㅎㅎㅎ

[github-actions]

Test Results

17 tests   17 ✅  0s ⏱️
 2 suites   0 💤
 2 files     0 ❌

Results for commit ee4fc5c.

[subsub97]

ap ap 가시죠