refactor(caption): 重构字幕引擎结构、修复字幕引擎空置报错 (#2)

- 修复gummy字幕引擎长时间空置报错的问题
- 将 python-subprocess 文件夹重命名为 caption-engine
- 删除未使用的 prototype 代码

electron-builder.yml

@@ -10,8 +10,8 @@ files:
   - '!{.env,.env.*,.npmrc,pnpm-lock.yaml}'
   - '!{tsconfig.json,tsconfig.node.json,tsconfig.web.json}'
 extraResources:
-  from: ./python-subprocess/dist/main-gummy.exe
-  to: ./python-subprocess/dist/main-gummy.exe
+  from: ./caption-engine/dist/main-gummy.exe
+  to: ./caption-engine/dist/main-gummy.exe
 asarUnpack:
   - resources/**
 win: