* fix(github): align PR source and review head origin
* fix(github): pin number-based work item open to the repo source preference
Open-by-number and details still ran the upstream-first multi-candidate PR
probe, so a fork and its upstream sharing a PR number opened different PRs
than the list and start-point paths did once #10677 pinned those to origin.
Thread repo.issueSourcePreference through dispatchWorkItem, getWorkItemDetails,
getRepoWorkItem, and getRepoWorkItemDetails. getWorkItemByOwnerRepo is left
alone: explicit owner/repo already pins identity. auto/upstream/undefined keep
the multi-candidate probe.
Co-authored-by: Orca <help@stably.ai>
* test(github): enforce origin preference in review head origin resolution
The explicit origin preference must short-circuit before any identity probe, so no remote queries should occur. Add validation to reject unexpected remotes and tighten the test assertion to verify no remote get-url calls happen at all.
* fix(github): enforce origin preference in issue open-by-number lookup
listWorkItems and getWorkItem must share preference so origin/upstream
toggles cannot disagree. Explicit origin preference now fail-closes when
origin identity is unresolved (no bare-lookup fallback), matching the
PR candidate resolution rule.
---------
Co-authored-by: Orca <help@stably.ai>
