Documents the actual end-to-end sequence that got a real DID working
(account setup, DID ordering, both trunk objects, droplet configuration,
permission setup, testing), including the real confirmed values (the
$0.00388/min rate, the port-5060 SIP URI forwarding format, the two
separate trunk-object types) and a summary of every real bug hit and
fixed along the way. Linked from the existing planning-notes doc.
