Workflow-driven update PRs opened with GITHUB_TOKEN do not start
further workflow runs, so the CI orchestrator never executed against
them. Each PR-opening job in update.yml now mints a short-lived
GitHub App installation token via actions/create-github-app-token@v2
and forwards APP_SLUG to open_update_pr.sh, which derives the
verified-commit identity from the App user.
The job-level permissions block drops to read-only since write access
is provided exclusively by the App token. Behaviour with the secrets
unset is fail-loud: the token step fails, the PR step is skipped,
and no PR with an unintended identity is ever created.
Requires the BOT_APP_ID and BOT_APP_PRIVATE_KEY repository secrets
documented in docs/contributing/tools/github/actions/secrets.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add repository variable CI_RUN_ON_MAIN that gates whether pushes to
main trigger CI. When unset (default), pushes to main skip CI;
set to 'true' to enable. Pushes to other branches are unaffected.
Reorganize GitHub Actions docs into a dedicated tools/github/actions/
directory and consolidate every CI repository variable in a single
SPOT (configuration.md). Move actions.md to actions/workflows.md and
branch/configuration.md to actions/configuration.md, then update
every cross-reference. Trim README files to scope-only per
docs/contributing/artefact/files/docs/readme_md.md.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>