Function handle_muxspect_dock 

pub async fn handle_muxspect_dock(
    __arg0: State<AppState>,
    __arg1: Query<MuxspectDockQuery>,
) -> impl IntoResponse

GET /api/v1/muxspect/dock?block_id=X — the cached ToolNode status snapshot for one block, cross-referenced against ProcessBroker to flag entries that look stuck. See docs/specs/SPEC_MUXSPECT_DOCK_DIAGNOSIS_AND_REMEDIATION_2026_08_06.md §3.1.