Previously list_repositories was blocked in service-PAT mode because it has no
repository target for the per-user permission check, so users could not list
their repositories at all (the connector surfaced a generic error).
list_repositories now returns only the repositories the signed-in user owns or
contributes to, instead of everything the bot token can see:
- gitea_client.py: add list_user_repositories(login) — resolves the user id and
queries /api/v1/repos/search with the uid filter.
- repository.py: list_repositories_tool uses the user-scoped path when a service
PAT is configured and a user login is present; pure-OAuth mode still uses the
user's own /user/repos.
- server.py: allow list_repositories through the service-PAT guard (it is scoped
to the user in the handler); all other tools still require a repository target.
- README.md: document the new user-scoped behavior and its visibility caveat.
Tests: user-scoped client method (uid resolution + unknown user), PAT-mode tool
scoping, and conftest now clears the request context between tests to prevent
contextvar login leakage across files.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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