Added extractToothSurface() helper that parses "#NN [SURFACES]" from any
procedure input (tooth 1-32, surface letters O/M/D/B/L/F/I/V). Applied to
all lookup paths so any procedure with #14 or #29 OB carries toothNumber and
toothSurface through to the DDMA Selenium worker.
Also propagate toothNumber/toothSurface in matchedCodes and chatbot_claim_prefill
so the claim-form prefill sets these fields on the service lines before auto-submit.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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