Add index schema 2.1 with delta support - #6523

On November 2, 2026, GitHub will restrict `pull_request_target` on public repositories by default. To continue allowing the event trigger, configure an Actions policy. Learn more: https://gh.io/securely-using-pull_request_target#default-policy-for-pull_request_target

Skipping `.github/workflows/issue-closure-recommendation.lock.yml` because it could not be parsed file within time limit (slow-file)

Skipping `.github/workflows/duplicate-surfacing.lock.yml` because it could not be parsed file within time limit (slow-file)

Line matches candidate pattern (assign regex) `= /[^*].*?(?:[a-z]{3,}|[A-Z]{3,}|[A-Z][a-z]{2,}).*/[gi]?(?=\W|$)` (candidate-pattern)

Line matches candidate pattern (regex choice) `\(\?:[^)]+\|[^)]+\)` (candidate-pattern)