feat(web): space roles, upload queue with pipelined frames, background resume and faster sending

web/vite.config.ts

@@ -1,4 +1,5 @@
 import { execFileSync } from 'node:child_process';
+import http from 'node:http';
 import { readFileSync } from 'node:fs';
 import { fileURLToPath } from 'node:url';
 import react from '@vitejs/plugin-react';
@@ -34,6 +35,7 @@ export default defineConfig({
     },
   },
   build: { target: 'es2022', sourcemap: false },
-  server: { proxy: { '/api/v1': { target: process.env.WEBDROP_DEV_API_TARGET ?? 'http://127.0.0.1:5000', ws: true } } },
+  // 开发代理复用到后端的连接:默认每个请求新开一条 TCP,上传 1 MiB 的帧会被连接建立和慢启动拖得很慢
+  server: { proxy: { '/api/v1': { target: process.env.WEBDROP_DEV_API_TARGET ?? 'http://127.0.0.1:5000', ws: true, agent: new http.Agent({ keepAlive: true, maxSockets: 64 }) } } },
   test: { environment: 'node' },
 });