Function safeCloseController

src/services/api/openAICompatWsV2Native.ts:170–180

(
      controller: ReadableStreamDefaultController<Uint8Array>,
    )

    }

    const safeCloseController = (
      controller: ReadableStreamDefaultController<Uint8Array>,
    ) => {
      if (streamClosed) return
      streamClosed = true
      try {
        controller.close()
      } catch {
        // The consumer may have cancelled while a native read was pending.
      }
    }

    const ensureStarted = () => {
      if (!startPromise) {