6debaf93bc
Task 4 implementer discovered that # delimiter conflicts with literal # inside [/?#] and [&#] character classes (PHP PCRE terminates the regex early). Same patterns repeat in Task 5; pre-update so a re-execution does not hit the same bug. Vimeo regex in Task 6 is unaffected (no literal # in pattern body). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>