// R-P8b (RA-C2) — pure shared contract for the live pipeline-board SSE stream.
// No server imports (no emitter/config), so it is safe to import from the client
// board hook as well as the server publish/subscribe helper. Keeps the SSE event
// name and change-payload shape in one place for both sides of the wire.

/** SSE event name the board stream sends and the client hook listens for. */
export const PROJECT_BOARD_SSE_EVENT = "projects.board.changed";

export type ProjectBoardChangeType = "created" | "stage_changed" | "updated" | "stage_change_undone" | "archived";

export interface ProjectBoardChange {
  readonly type: ProjectBoardChangeType;
  readonly pipelineId: string;
  readonly projectId?: string;
  readonly at: string;
}