Add guard to phpcbf and phpcs strict steps: if neither phpcs.xml,
phpcs.xml.dist, nor .phpcs.xml.dist exists in the repo root, both steps
exit 0 with an info message. This prevents startup_failure on the self-test
(peptide-e2e is a Node repo with no PHPCS config) and provides clean
feedback for repos not yet configured for PHPCS.
Real PHP repos all have a phpcs.xml (prautoblogger, theme, pr-core, etc.)
so the guard is transparent for them.
Agent-Session: claude/reusable-ci-20260616
47acc85a0e