Refine tpt-error reporting to include closure attribution (`'locally'`
vs `'by peer'`), tighten match conditions and reduce needless newlines
in exc reprs.
Deats,
- factor out `trans_err_msg: str` and `by_whom: str` into a `dict`
lookup before the `match:` block to pair specific err msgs to closure
attribution strings.
- use `by_whom` directly as `CRE` case guard condition
(truthy when msg matches known underlying CRE msg content).
- conveniently include `by_whom!r` in `TransportClosed` message.
- fix `'locally ?'` -> `'locally?'` in send-side `CRE`
handler (drop errant space).
- add masked `maybe_pause_bp()` calls at both `CRE` sites (from when
i was tracing a test harness issue where the UDS socket path wasn't
being cleaned up on teardown).
- drop trailing `\n` from `body=` args to `TransportClosed`.
- reuse `trans_err_msg` for the `BRE`/broken-pipe guard.
Also adjust testing, namely `test_ctxep_pauses_n_maybe_ipc_breaks`'s
expected patts-set for new msg formats to be raised out of
`.ipc._transport`.
(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code
Gud Boi
bf6de55865