feat: 用户表添加selected_audio_id字段，添加用户音频绑定接口

tests/unit_test/user_test.py

@@ -155,6 +155,21 @@ class UserServiceTest:
                 print("音频上传测试成功")
             else:
                 raise Exception("音频上传测试失败")
+            
+    def test_bind_audio(self):
+        url = f"{self.socket}/users/audio/bind"
+        payload = json.dumps({
+            "user_id":self.id,
+            "audio_id":self.audio_id
+        })
+        headers = {
+            'Content-Type': 'application/json'
+        }
+        response = requests.request("POST", url, headers=headers, data=payload)
+        if response.status_code == 200:
+            print("音频绑定测试成功")
+        else:
+            raise Exception("音频绑定测试失败")
     
     def test_audio_download(self):
         url = f"{self.socket}/users/audio/{self.audio_id}"
@@ -185,6 +200,7 @@ def user_test():
     user_service_test.test_hardware_unbind()
     user_service_test.test_upload_audio()
     user_service_test.test_update_audio()
+    user_service_test.test_bind_audio()
     user_service_test.test_audio_download()
     user_service_test.test_audio_delete()
     user_service_test.test_user_delete()