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>

packages/client/src/api/client.ts

@@ -0,0 +1,63 @@
+import router from '@/router'
+
+const DEFAULT_BASE_URL = ''
+
+function getBaseUrl(): string {
+  return localStorage.getItem('hermes_server_url') || DEFAULT_BASE_URL
+}
+
+export function getApiKey(): string {
+  return localStorage.getItem('hermes_api_key') || ''
+}
+
+export function setServerUrl(url: string) {
+  localStorage.setItem('hermes_server_url', url)
+}
+
+export function setApiKey(key: string) {
+  localStorage.setItem('hermes_api_key', key)
+}
+
+export function clearApiKey() {
+  localStorage.removeItem('hermes_api_key')
+}
+
+export function hasApiKey(): boolean {
+  return !!getApiKey()
+}
+
+export async function request<T>(path: string, options: RequestInit = {}): Promise<T> {
+  const base = getBaseUrl()
+  const url = `${base}${path}`
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+    ...options.headers as Record<string, string>,
+  }
+
+  const apiKey = getApiKey()
+  if (apiKey) {
+    headers['Authorization'] = `Bearer ${apiKey}`
+  }
+
+  const res = await fetch(url, { ...options, headers })
+
+  // Global 401 handler — clear auth and redirect to login
+  if (res.status === 401) {
+    clearApiKey()
+    if (router.currentRoute.value.name !== 'login') {
+      router.replace({ name: 'login' })
+    }
+    throw new Error('Unauthorized')
+  }
+
+  if (!res.ok) {
+    const text = await res.text().catch(() => '')
+    throw new Error(`API Error ${res.status}: ${text || res.statusText}`)
+  }
+
+  return res.json()
+}
+
+export function getBaseUrlValue(): string {
+  return getBaseUrl()
+}