59 tests exist across 8 files but were never running in CI. This adds a ci.yml with PHP Lint + PHPCS + PHPUnit against WP test framework on a MySQL service. Agent-Session: cowork-pr-theme-tests-20260414
59 tests exist across 8 files but were never running in CI. This adds a ci.yml with PHP Lint + PHPCS + PHPUnit against WP test framework on a MySQL service. Agent-Session: cowork-pr-theme-tests-20260414