Biggest win: HS sources from upstream HTML had newlines replaced with
spaces, losing command separation. Now multi-space sequences become
'then' keywords, matching _hyperscript's implicit newline-as-separator
behavior. +42 tests passing.
Parser: 'is between X and Y', 'is not between', 'starts with',
'ends with' comparison operators.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>