refactor: 简化运行时与服务协调

提取运行时生命周期管理，集中远程访问与 USB 协调，并缩小 Web 路由状态依赖。

src/web/handlers/config/hid.rs

@@ -1,19 +1,18 @@
 use axum::{extract::State, Json};
-use std::sync::Arc;
 
 use crate::config::HidConfig;
 use crate::error::Result;
-use crate::state::AppState;
+use crate::web::state::UsbApiState;
 
 use super::types::HidConfigUpdate;
 use super::usb_update::{stage_hid_config_update, update_usb_config};
 
-pub async fn get_hid_config(State(state): State<Arc<AppState>>) -> Json<HidConfig> {
+pub async fn get_hid_config(State(state): State<UsbApiState>) -> Json<HidConfig> {
     Json(state.config.get().hid.clone())
 }
 
 pub async fn update_hid_config(
-    State(state): State<Arc<AppState>>,
+    State(state): State<UsbApiState>,
     Json(req): Json<HidConfigUpdate>,
 ) -> Result<Json<HidConfig>> {
     let config = update_usb_config(&state, move |staged| {