v2.1.0-beta.2

Minor Changes

• 38cf55d: Add optional metadata (Record<string, string>) to FileData, carrying arbitrary key/value pairs attached in Grasshopper through to downstream consumers for tagging and indexing. Optional and backwards-compatible — existing payloads and the isFileData guard are unaffected.

Patch Changes

• 38cf55d: Make GrasshopperClient.create() resilient to a cold or briefly-busy-but-up Compute server.

  The pre-flight /healthcheck probe was a single-sample boolean gate with no retry and no timeout, so one missed probe (warm-up, a transient network blip, momentary non-200) made construction throw NETWORK_ERROR even though the server was online.

  • create() now retries the healthcheck with exponential backoff (default 3 probes, 250ms→1s) before failing, configurable via the existing config.retry policy, and disposes the client on final failure.
  • isServerOnline(timeoutMs = 5000) now bounds the probe with AbortSignal.timeout so a hung connection can't stall the caller; pass 0 to disable. The probe in create() always uses its own timeout, independent of config.timeoutMs (which may be 0 for long solves).