Release candidate validation

Workflow runs for Release candidate validation

• test(release): inject read failures at the bounded descriptor boundary

  completed successfully:
  Release candidate validation#4:Commit307a399pushedbycolbymchenry
  candidate/extensions-release-20260923

  Sep 23, 20261m 45s
  More actions for workflow run 4

• test(release): complete packed companion proof and reject tampered up…

  completed successfully:
  Release candidate validation#3:Commitbf81c39pushedbycolbymchenry
  candidate/extensions-release-20260923

  Sep 23, 20261m 34s
  More actions for workflow run 3

• fix(release): make native checksum verification portable and race pro…

  completed successfully:
  Release candidate validation#2:Commit61e668epushedbycolbymchenry
  candidate/extensions-release-20260923

  Sep 23, 20261m 18s
  More actions for workflow run 2

• fix: harden the extension release candidate and withhold viewer commands

  failed:
  Release candidate validation#1:Commit90516f8pushedbycolbymchenry
  candidate/extensions-release-20260923

  Sep 23, 20269m 2s
  More actions for workflow run 1