fix(client): include runId in WorkflowExecutionAlreadyStartedError - #2206
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The server returns the runId of the already-running execution in the ALREADY_EXISTS error details (WorkflowExecutionAlreadyStartedFailure), but the SDK dropped it when constructing the error. Decode it and expose it as an optional `runId`, mirroring the existing Nexus handling. Closes temporalio#1838
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Closes #1838
The server returns the
runIdof the already-running execution in theALREADY_EXISTSerror details (WorkflowExecutionAlreadyStartedFailure), but the SDK discarded it when buildingWorkflowExecutionAlreadyStartedError. This adds an optionalrunIdto the error and populates it at the three throw sites (start,signalWithStart, update-with-start), decoding the detail via a newextractWorkflowExecutionAlreadyStartedRunIdhelper that mirrors the existingextractNexusOperationAlreadyStartedRunId.The new field is optional, so this is backwards-compatible; when the server does not provide the detail (e.g. older servers),
runIdis simplyundefined.Test plan
Extended the existing
Start of workflow respects workflow id conflict policyintegration test to assert thaterr.runIdmatches the running execution'sfirstExecutionRunId.