Version 0.17.1

Changed

• Dual‑mode support in run_sync: Now accepts either an async function with args or a standalone coroutine object.
• Input normalization: Uses inspect to detect and wrap calls into a zero‑argument coroutine factory.
• Seamless execution: Drives work on the main thread via anyio.run,
  with a clean fallback to ThreadPoolExecutor if an event loop is active.
• Error clarity: Raises a precise TypeError when the argument is neither a coroutine function nor object.
• Simplified API: Eliminates nested lambdas by centralizing logic into a single wrapper_fn
  passed to anyio.run.