## Summary
- Replace asyncio.create_task() with anyio task group for trio
compatibility
- Update client.py docstring example to use anyio.sleep
- Add trio example demonstrating multi-turn conversation
## Details
The SDK already uses anyio for most async operations, but one line was
using asyncio.create_task() which broke trio compatibility. This PR
fixes that by using anyio's task group API with proper lifecycle
management.
### Changes:
1. **subprocess_cli.py**: Replace asyncio.create_task() with anyio task
group, ensuring proper cleanup on disconnect
2. **client.py**: Update docstring example to use anyio.sleep instead of
asyncio.sleep
3. **streaming_mode_trio.py**: Add new example showing how to use the
SDK with trio
## Test plan
- [x] All existing tests pass
- [x] Manually tested with trio runtime (created test script that
successfully runs multi-turn conversation)
- [x] Linting and type checking pass
🤖 Generated with [Claude Code](https://claude.ai/code)
