initial-sync.ts

1export const INITIAL_SYNC_PENDING_DEVICE_KEY =2  "peach_initial_sync_pending_device_id";34export interface InitialSyncDevice {5  deviceId: string;6  lastSyncedAt?: number;7}89/**10 * Pairing persists identity and vault-key material before the first entry sync.11 * A receiver is ready to reveal its vault only after the newly paired source12 * has completed a real sync round, recorded by its durable lastSyncedAt.13 */14export function hasCompletedInitialSync(15  devices: InitialSyncDevice[],16  pendingDeviceId: string,17): boolean {18  return devices.some(19    (device) =>20      device.deviceId === pendingDeviceId &&21      typeof device.lastSyncedAt === "number",22  );23}