fix(lint): stop three rules matching code a composition only displays (#2811)

A code-explainer composition renders selectors and API calls as text.
`stripJsStringLiterals` blanks string and template contents (offsets
preserved) so `composition_id_selector_in_comment`,
`template_literal_selector` and `raf_animation_loop` scan real code only.

The scanner tracks regex-vs-division context so a regex literal's own
quotes cannot open a phantom string and blank the rest of the script; on
any unbalanced scan it returns the source unchanged, so an unmodelled
parse degrades to the pre-existing behaviour rather than blanking code on
an error-severity gate.