Replaces the old after-hours/new-patient SVG with an accurate diagram of
the current conversation flow: 3-message TwiML entry → insurance check →
MassHealth consent + ID/DOB → Selenium eligibility → ACTIVE/INACTIVE paths,
inactive branch asks for other insurance then collects contact info, and
office-hours-validated date/time scheduling with appointment creation.
Existing patient branch shows same-insurance confirmation, MassHealth
auto-check (stored ID+DOB), and Selenium result paths.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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