Implements MihomoClient wrapping Mihomo's REST API with provider refresh
polling, config reload, and startup readiness check. Also fixes a
Python 3.14 + respx 0.21.1 compatibility issue where the httpcore mocker
passes bytes method to httpx.Request causing Method pattern matching to
fail; resolved by switching respx DEFAULT_MOCKER to the httpx-level mocker.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
urbnywrt
21437c78ad