at.happyproto.actor.syncAccount

Record the email address on the caller's PDS account with HappyProto, read server-side from their PDS session. The dashboard calls it once after each sign-in. The PDS reports the address only when the sign-in granted it (transition:email or account:email); without one, the last recorded address is kept, and an unconfirmed address never replaces a confirmed one. The address itself is never returned. Customers and staff; anyone else gets recorded = false.