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>
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