Adds TestGetIssueGCCheck_WithDaemonToken_CrossWorkspace alongside the
existing TestGetTaskStatus_WithDaemonToken_CrossWorkspace, covering:
- daemon token scoped to a different workspace → 404 (matches the
"issue not found" status, so no UUID enumeration oracle)
- daemon token scoped to the issue's workspace → 200 with status and
updated_at fields populated
Follow-up to #1121, which fixed the underlying IDOR reported in #1112
but did not ship a regression test. This gates the class of bug at CI
so the next handler to forget requireDaemonWorkspaceAccess will be
caught before merge.