refactor: restructure project for multi-agent extensibility

- Migrate source to packages/client and packages/server directories
- Namespace all Hermes-specific code under hermes/ subdirectories
  (api/hermes/, components/hermes/, views/hermes/, stores/hermes/)
- Add hermes.* route names and /hermes/* path prefixes
- Upgrade @koa/router to v15, adapt path-to-regexp v8 syntax
- Fix proxy path rewriting: /api/hermes/v1/* → /v1/*, /api/hermes/* → /api/*
- Fix frontend API paths to match backend /api/hermes/* routes
- Fix WebSocket terminal path to /api/hermes/terminal
- Add proxyMiddleware for reliable unmatched route proxying
- Add profiles route module and hermes-cli profile commands
- Update CLAUDE.md development guide with new architecture
- Add Chinese README (README_zh.md)
- Add Web Terminal feature to README

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vite.config.ts

@@ -23,12 +23,17 @@ function createProxyConfig(): ProxyOptions {
 }
 
 export default defineConfig({
+  root: 'packages/client',
   plugins: [vue()],
   resolve: {
     alias: {
-      '@': resolve(__dirname, 'src'),
+      '@': resolve(__dirname, 'packages/client/src'),
     },
   },
+  build: {
+    outDir: '../../dist/client',
+    emptyOutDir: true,
+  },
   server: {
     proxy: {
       '/api': createProxyConfig(),