Add diagnostics for GitHub release creation failures

[Copilot]

The Release workflow exposed only HTTP 500 when gh release create failed, leaving insufficient data to diagnose GitHub API or release-state issues.

• Failure diagnostics

  • Capture and print gh release create output and exit status.
  • Preserve the original non-zero exit code.

• Release context

  • Log CLI version, repository, commit, tag target, release assets, and checksums.

• Post-failure API state

  • Query release-by-tag and tag-ref endpoints.
  • Record GitHub API core rate-limit state.

if [ "$release_create_status" -ne 0 ]; then
  log_diagnostic "Release API response after failed creation" \
    gh api --include "repos/$GITHUB_REPOSITORY/releases/tags/$RELEASE_TAG"
  exit "$release_create_status"
fi

[Copilot]

Pull request overview

Adds actionable diagnostics when GitHub release creation fails while preserving the original exit code.

Changes:

• Logs release context, assets, checksums, and API state.
• Captures gh release create output and status.
• Includes unrelated generated audit-workflow runtime changes requiring removal.

Show a summary per file

File	Description
.github/workflows/release.md	Adds release-failure diagnostics.
.github/workflows/release.lock.yml	Compiles the release workflow changes.
.github/workflows/daily-grader-audit.lock.yml	Introduces unrelated runtime and telemetry updates.

Review details

• Files reviewed: 3/3 changed files
• Comments generated: 1
• Review effort level: Balanced