The `.uid`->`.aid` migration (prior commits) re-assembled the
legacy uid pair by hand as `(x.aid.name, x.aid.uuid)`.
`Aid.uid` (`msg/types.py`) is the non-deprecated canonical
property returning exactly that pair, so swap to `x.aid.uid`
everywhere — byte-identical, just DRY + consistent.
Covers the 5 review-flagged source sites (`msg._ops`,
`devx.debug._sync`, `experimental._pubsub`, `_exceptions`)
plus the ~22 unflagged identical sites (`_streaming` f-string
logs + 6 test modules); also tightens the `_exceptions`
`our_uid` annotation to `tuple[str, str]`.
Review: PR #469 (copilot-pull-request-reviewer)
https://github.com/goodboy/tractor/pull/469#pullrequestreview-4575979601
(this patch was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi
bffeba952a