Function dispatchShareRequestsParallel

dispatchShareRequestsParallel(
    client: StorageClient,
    registry: Registry,
    owner: OwnerRecord,
    startState: StartState,
    sessionId: ARID,
    collection: CollectionResult<SignRound1ResponseData>,
    commitments: Map<string, unknown>,
    previewShare?: boolean,
    verbose?: boolean,
): Promise<[XID, Error | null][]>
Dispatch share requests to participants in parallel.

Port of parallel dispatch logic from cmd/sign/coordinator/round1.rs.
Parameters
- client: StorageClient
- registry: Registry
- owner: OwnerRecord
- startState: StartState
- sessionId: ARID
- collection: CollectionResult<SignRound1ResponseData>
- commitments: Map<string, unknown>
- OptionalpreviewShare: boolean
- Optionalverbose: boolean
Returns Promise<[XID, Error | null][]>
- Defined in cmd/sign/coordinator/round1.ts:336