onPing callback surfaces ping latency

Minor Changes

• f149d9d: Add a dedicated onPing callback that surfaces ping events (including the estimated ping_ms) to consumers. The SDK still replies to pings with a pong automatically; the callback is informational, useful for e.g. reporting connection latency. Also clarifies the documentation for ping_ms: "Estimated ping in milliseconds, based on previous ping/pong timing."

Patch Changes

• Updated dependencies [f149d9d]
  • @elevenlabs/client@1.15.0