* refactor(admission): own inspector, web, and CLI state per host
Replace the process-global inspector, web-bundle, guidance, and JavaScript
counters with objects a host passes in, so independent instances do not
share admission or cleanup.
* fix(admission): keep worker and file cleanup on the host
Web-bundle and JavaScript workers retry only their host registry, and
each Inspector admission authorizes and closes its own file scope.
Browser providers can share one web-bundle admission.
* test(inspector): gate one admission's file cleanup
The isolation test delayed the first ArtifactResourceScope.retryCleanup
call, so a second call on a shared ElectronFileScope still finished.
Hold first.files.retryCleanup until the other admission's close
finishes, then release and join before restoring the method.
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Co-authored-by: Cursor Agent <cursoragent@cursor.com>
