On job pages for standard branches, the "Gitea" link points to:

{server}/{organization}/{repo}/{branch}

but this gives a 404 error, the correct link seems to be:

{server}/{organization}/{repo}/src/branch/{branch}

On job pages for pull requests, the "Gitea" link points to:

{server}/{organization}/{repo}/{pr number}

but this gives a 404 error, the correct link seems to be:

{server}/{organization}/{repo}/pulls/{pr number}