pub fn decode(url: &str) -> Result<InviteLink>Expand description
Parse a huddle://invite#... URL back into an InviteLink.
huddle 0.7.11: when v >= 2, this also verifies the signature
against the embedded pubkey, re-derives the fingerprint, and rejects
invites whose signed_at_ms is older than INVITE_MAX_AGE_MS.
v == 1 (legacy) parses unchanged so older invites still work,
but callers should display a “this invite is unsigned” warning.