A peasant and a farmer enter through whatever signal they have.
They always self-custody. Bridges invite Kindling; they never hold Source keys.
See docs/CUSTODY.md, docs/KINDLING.md, docs/INVENT.md.
People speak invites. Kindling spends. Source stays theirs.
SMS SEND rina 5 → KINDLING_REQUIRED + invite — not a ledger debit.