fix: 修复编译错误 + cargo check 通过

- Recorder::new() 需要 RecordingMode 参数 → 改用 Recorder::full()
- export_path 借用问题 → clone 后传入 import_csv
- Result 未处理警告 → 添加 let _ =
- 安装 pkg-config + libudev-dev 系统依赖
- 配置 USTC cargo 国内镜像源

src/ui.rs

@@ -3,7 +3,7 @@ use eframe::egui;
 use crate::{
     connection::{ConnectionManager, ConnectionState},
     recording::Recorder,
-    theme::{ONE_DARK_PRO, ACCENT_BLUE, ACCENT_CYAN, ACCENT_GREEN, ACCENT_ORANGE, ACCENT_RED, accent_text, dim_text, group_frame, panel_frame, tag_button},
+    theme::{ONE_DARK_PRO, ACCENT_BLUE, ACCENT_GREEN, ACCENT_ORANGE, ACCENT_RED, accent_text, dim_text, group_frame, panel_frame, tag_button},
     utils::serial_enum,
 };
 
@@ -1068,9 +1068,9 @@ pub fn draw_recording_toolbar(
         };
         if ui.add(rec_btn).clicked() {
             if is_recording {
-                recorder.stop_recording();
+                let _ = recorder.stop_recording();
             } else {
-                recorder.start_full_recording();
+                let _ = recorder.start_full_recording();
             }
         }
 
@@ -1087,9 +1087,9 @@ pub fn draw_recording_toolbar(
         };
         if ui.add(snap_btn).clicked() {
             if is_recording {
-                recorder.stop_recording();
+                let _ = recorder.stop_recording();
             } else {
-                recorder.start_snapshot_recording();
+                let _ = recorder.start_snapshot_recording();
             }
         }
 
@@ -1098,7 +1098,7 @@ pub fn draw_recording_toolbar(
         // Pause/Resume
         if is_recording {
             if ui.add(tag_button("⏸ 暂停")).clicked() {
-                recorder.pause_recording();
+                let _ = recorder.pause_recording();
             }
         }
 
@@ -1138,7 +1138,8 @@ pub fn draw_recording_toolbar(
             )
             .clicked()
         {
-            if let Err(e) = recorder.import_csv(export_path) {
+            let import_path = export_path.clone();
+            if let Err(e) = recorder.import_csv(&import_path) {
                 eprintln!("[import] error: {e}");
             }
         }