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>

package.json

@@ -33,8 +33,8 @@
     "start": "vite --host --port 8648",
     "dev": "concurrently \"npm run dev:server\" \"npm run dev:client\"",
     "dev:client": "vite --host",
-    "dev:server": "nodemon --signal SIGTERM --watch server/src -e ts,tsx --exec node -r ts-node/register server/src/index.ts",
-    "build": "vue-tsc -b && vite build && tsc -p server/tsconfig.json",
+    "dev:server": "nodemon --signal SIGTERM --watch packages/server/src -e ts,tsx --exec node -r ts-node/register packages/server/src/index.ts",
+    "build": "vue-tsc -b && vite build && tsc -p packages/server/tsconfig.json",
     "preview": "vite preview"
   },
   "files": [
@@ -44,7 +44,7 @@
   "dependencies": {
     "@koa/bodyparser": "^5.0.0",
     "@koa/cors": "^5.0.0",
-    "@koa/router": "^13.1.0",
+    "@koa/router": "^15.4.0",
     "@xterm/addon-fit": "^0.11.0",
     "@xterm/addon-web-links": "^0.12.0",
     "@xterm/xterm": "^6.0.0",
@@ -68,7 +68,7 @@
     "@types/js-yaml": "^4.0.9",
     "@types/koa": "^2.15.0",
     "@types/koa__cors": "^5.0.0",
-    "@types/koa__router": "^12.0.4",
+    "@types/koa__router": "^12.0.5",
     "@types/koa-send": "^4.1.6",
     "@types/koa-static": "^4.0.4",
     "@types/markdown-it": "^14.1.2",
@@ -85,4 +85,4 @@
     "vite": "^8.0.4",
     "vue-tsc": "^3.2.6"
   }
-}
+}