* fix: prefer DevToolsActivePort websocket path over HTTP discovery in --auto-connect
Reverses the discovery order in `auto_connect_cdp()` so the exact
WebSocket path from DevToolsActivePort is tried first, falling back
to legacy HTTP endpoints (`/json/version`, `/json/list`) only when
the direct path fails. This eliminates the duplicate remote-debugging
permission prompts caused by unnecessary HTTP probes on Chrome M144+.
Also adds `verify_ws_endpoint()` to validate the WebSocket URL is a
live CDP server before returning it, preventing stale URLs from being
handed to callers.
Fixes#1210Fixes#1206
* chore: remove unrelated issue references from test comment
* style: apply rustfmt
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Co-authored-by: hyunjinee <leehj0110@kakao.com>
