- Add parseMultiPaCode: "4PA #3 #14 #19 #30" expands to D0220 + 3× D0230 with tooth numbers - Add "3rd pa"–"6th pa" direct aliases → D0230 as fallback - Tighten LLM prompt to always use "2nd pa" for all additional PAs, never "3rd pa" etc. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>