fix: voice interupt

main/background_capture_service.h

@@ -0,0 +1,32 @@
+#ifndef BACKGROUND_CAPTURE_SERVICE_H
+#define BACKGROUND_CAPTURE_SERVICE_H
+
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+
+#include <atomic>
+#include <cstdint>
+#include <string>
+
+class BackgroundCaptureService {
+public:
+    BackgroundCaptureService();
+    ~BackgroundCaptureService();
+
+    void Start();
+    void Stop();
+    bool IsRunning() const { return running_.load(); }
+
+private:
+    TaskHandle_t task_handle_ = nullptr;
+    std::atomic<bool> running_ = false;
+    uint32_t consecutive_failures_ = 0;
+
+    static void TaskEntry(void* arg);
+    void Run();
+    bool CaptureAndSendFrame();
+    bool UploadJpegFrame(const std::string& jpeg_data);
+    uint32_t GetFailureDelayMs() const;
+};
+
+#endif // BACKGROUND_CAPTURE_SERVICE_H