Homeserver URL the new account should register against.
Human-readable server name (from /v1/server-info).
OptionalinviterInviter's DID, if present in the token.
OptionalpostWhere to send the user after onboarding, if the token specifies.
OptionalinviterInviter's plaintext display name from the token.
OptionalinviterInviter's 32-byte profile key (used to prime the contact-profile cache).
Decoded invite-token info returned by validateInvite. Shown on the invite acceptance screen before any further server communication.