openbot-sdk 0.3.0

Removed

• Ego Semantic Annotation create/get/cancel/result wrappers. The operation is
  discontinued, and the OpenAPI compatibility check no longer requires its routes.

Fixed

• Mutations carrying an Idempotency-Key are no longer retried after 502:
  the gateway burns the key when the upstream fails, so a same-key retry masked
  the real error as 409. 409 invocation_in_progress is now retried with the
  same key until the stored result is replayed.
• scripts/check_openapi_contract.py sends an SDK User-Agent; the production
  edge rejected the default Python-urllib agent with 403, which would have
  failed the release workflow.