Fix issue listing for cross-PDS repositories
* Rename buildRepoAtUri → resolveRepoId; return repoDid from the
sh.tangled.repo record instead of the record's AT-URI, since issue
records reference repoDid in their .repo field
* Fix repo name matching to check both rkey and value.name, handling
older tangled.org records that use an opaque TID as rkey
Co-authored-by: Claude (claude-sonnet-4-6) <noreply@anthropic.com>
authored by