fix(issue): adapt create/close/reopen endpoints to current Gitee API

[noodle-bag]

Summary

• update issue create endpoint to POST /v5/repos/{owner}/issues with repo payload
• update issue state endpoint to PATCH /v5/repos/{owner}/issues/{number} with repo payload
• keep list/view/comment endpoints unchanged

Why

Gitee OpenAPI currently exposes:

• GET /v5/repos/{owner}/{repo}/issues
• POST /v5/repos/{owner}/issues
• PATCH /v5/repos/{owner}/issues/{number}

Using old create/state endpoints returns 404 {"message":"project or enterprise"}.

Verification

• gitee issue create --repo owner/repo ... succeeds
• gitee issue close --repo owner/repo succeeds
• gitee issue reopen --repo owner/repo succeeds
• gitee issue comment and gitee issue view/list remain working

[euxaristia]

Thanks for the contribution, I'll review it and merge it soon