- Collapse extractRootBlock + extractDarkBlock into a single extractBlock
helper; the two functions shared identical body logic (same regex, same
return) and differed only in the string they received — now the call
sites pass the appropriate slice inline.
- Remove the second test in base.test.ts ("covers all three form control
selectors in one rule"): the first test's regex already asserts all
three selectors appear together with font-size: 16px, so the individual
/input/, /textarea/, /select/ matches added no coverage.
