DocuSign returns CONDITIONALTAB_HAS_INVALID_PARENT when a conditional tab
references a parent that doesn't exist or is a forbidden type (signature,
initial, auto-filled). Added _strip_invalid_conditionals() post-processing
pass that validates all conditionalParentLabel values against the actual
built tabs and removes any that won't pass DocuSign validation, logging a
warning for each. Also updated verify tests for the template role-fetch step.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Backend (web/routers/verify.py): POST /send (creates envelope from template),
GET /status/{id} (polls envelope state), POST /void/{id} (voids test envelope).
Registered in app.py. 7 tests passing.
Frontend (verification.js): table of migrated templates, Send Test button opens
dialog with pre-filled name/email from settings, polling every 5s, per-row
status updates (Sent → Delivered → Verified), Void button for cleanup.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Paul Huliganga