优化调整、BT下载（有bug）

src-tauri/src/mihomo_manager/commands.rs

@@ -4,7 +4,7 @@ use tauri::{AppHandle, State};
 
 use super::system_proxy::{clear_system_proxy_windows, get_system_proxy_windows, set_system_proxy_windows};
 use super::{
-    KernelInfo, KernelUpdateInfo, MihomoManager, ProfileMeta, ProxySettings, ProxyStatus,
+    KernelInfo, KernelUpdateInfo, MihomoManager, ProfileMeta, ProxySettings, ProxyStatus, TrafficSnapshot,
 };
 
 use crate::process_manager::{ProcessInfo, ProcessManager, ProcessStatus};
@@ -238,6 +238,14 @@ pub async fn proxy_get_connections(
     state.get_connections().await
 }
 
+#[tauri::command]
+#[specta::specta]
+pub async fn proxy_traffic(
+    state: State<'_, MihomoManager>,
+) -> Result<TrafficSnapshot, String> {
+    state.traffic_snapshot().await
+}
+
 #[tauri::command]
 #[specta::specta]
 pub async fn proxy_close_connection(