editable todo summary field

vite.config.ts

@@ -1,3 +1,5 @@
+import { Agent as HttpAgent } from 'node:http'
+import { Agent as HttpsAgent } from 'node:https'
 import react from '@vitejs/plugin-react'
 import { defineConfig, loadEnv, type ProxyOptions } from 'vite'
 
@@ -23,6 +25,13 @@ export default defineConfig(({ mode }) => {
       changeOrigin: true,
       rewrite: (path) => path.replace(/^\/caldav/, basePath),
       headers,
+      // The CalDAV server answers every request with `Connection: close`,
+      // but http-proxy's default agent still pools/reuses sockets — that
+      // races with the server closing them and intermittently surfaces as
+      // a 503 (ECONNRESET) here. A fresh connection per request avoids it.
+      agent: target.protocol === 'https:'
+        ? new HttpsAgent({ keepAlive: false })
+        : new HttpAgent({ keepAlive: false }),
     }
   }