refactor(main): 重构字幕引擎启动和错误处理逻辑

- 修改了字幕引擎的启动条件，增加了对环境变量和自定义应用的检查
- 优化了错误处理机制，通过控制窗口发送错误消息
- 在前端增加了错误通知功能

src/renderer/src/stores/captionControl.ts

@@ -1,6 +1,9 @@
 import { ref } from 'vue'
 import { defineStore } from 'pinia'
+
 import { notification } from 'ant-design-vue'
+import { ExclamationCircleOutlined } from '@ant-design/icons-vue'
+import { h } from 'vue'
 
 export const useCaptionControlStore = defineStore('captionControl', () => {
   const captionEngine = ref([
@@ -109,6 +112,16 @@ export const useCaptionControlStore = defineStore('captionControl', () => {
     });
   })
 
+  window.electron.ipcRenderer.on('control.error.send', (_, message) => { 
+    notification.open({
+      message: '发生错误',
+      description: message,
+      duration: null,
+      placement: 'topLeft',
+      icon: () => h(ExclamationCircleOutlined, { style: 'color: #ff4d4f' })
+    });
+  })
+
   return {
     captionEngine,      // 字幕引擎
     audioType,          // 音频类型