Extracted the individual token parsing blocks from `lexLine` into dedicated helper functions (`tryLexDate`, `tryLexBaseNumber`, `tryLexDecimalNumber`, `tryLexDotNumber`, `tryLexXRef`, `tryLexWord`).
This improves readability and maintainability by keeping the core parsing loop concise while preserving the exact fallback logic and functionality of the lexer.
Co-authored-by: Horizontal42 <75383519+Horizontal42@users.noreply.github.com>