* Improve usage and process monitoring displays

* Add transactional provider retry telemetry

* Clarify near-total cache usage

* Fix Anthropic web tool stream test double

* Restore live ACP streaming across retries

* [verified] fix: clean up shell process when start callback fails

* further fixes

* hugging face spool cleanup

* more spooling

* fix(shell): integrate spooling with process monitoring

* fix(ui): show cache writes and stable activity ages

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Co-authored-by: panding <panding99@outlook.com>
Co-authored-by: evalstate <evalstate@users.noreply.github.com>