Function createSnapshot

apps/desktop/src/main/snapshots-db.ts:372–395

(db: Database, input: SnapshotCreateInput)

}

export function createSnapshot(db: Database, input: SnapshotCreateInput): DesignSnapshot {
  return mutateStore(db, (data) => {
    requireDesignIndex(data, input.designId);
    const now = nowIso();
    const snapshot: DesignSnapshot = {
      schemaVersion: 1,
      id: crypto.randomUUID(),
      designId: input.designId,
      parentId: input.parentId,
      type: input.type,
      prompt: input.prompt,
      artifactType: input.artifactType,
      artifactSource: input.artifactSource,
      createdAt: now,
      ...(input.message !== undefined ? { message: input.message } : {}),
    };
    data.snapshots.push(snapshot);
    const designIdx = requireDesignIndex(data, input.designId);
    const design = data.designs[designIdx];
    if (design === undefined) throw new Error(`Design not found: ${input.designId}`);
    data.designs[designIdx] = { ...design, updatedAt: now };
    return snapshot;
  });
}

export function listSnapshots(db: Database, designId: string): DesignSnapshot[] {
  return readStore(db)