feat(web): add authenticated file workflow

- feat: connect login and logout to the REST API with session-scoped tokens, protected routing, single-flight refresh, and authenticated query cache cleanup.
- feat: add the Ant Design application shell with root file listing, pagination, small-file upload, and authenticated download.
- test: cover session storage and API retry and error behavior with Vitest.
- docs: document the browser milestone, same-origin API topology, and deferred transfer and account features.

web/vite.config.ts

@@ -4,4 +4,9 @@ import tailwindcss from '@tailwindcss/vite'
 
 export default defineConfig({
   plugins: [react(), tailwindcss()],
+  server: {
+    proxy: {
+      '/api': 'http://127.0.0.1:10086',
+    },
+  },
 })