feat: Auto-connect WebMCP without agent intervention

- Add requestToken() and autoConnect() functions to request tokens directly from WebMCP server
- Add /api/webmcp-request-token endpoint to proxy token requests (for HTTPS/Traefik)
- Add webmcpHttp endpoint configuration for direct WebMCP HTTP API access
- Update App.vue to auto-connect on load with polling fallback
- Add kill-ports script to clear ports 4101, 4102, 4103, 4105 before starting

package.json

@@ -3,7 +3,8 @@
   "version": "1.0.0",
   "description": "Dynamic canvas for Claude Code interaction",
   "scripts": {
-    "start": "concurrently -n api,terminal,frontend -c blue,yellow,green \"cd server && bun --watch run index.ts\" \"cd server && bun run terminal.ts\" \"cd frontend && bun run dev --host\"",
+    "kill-ports": "node -e \"const {execSync} = require('child_process'); [4101,4102,4103,4105].forEach(p => { try { const pid = execSync('netstat -ano | findstr :' + p + ' | findstr LISTENING', {encoding:'utf8'}).split(/\\s+/).pop().trim(); if(pid) execSync('taskkill /PID ' + pid + ' /F', {stdio:'ignore'}); } catch(e){} }); console.log('Ports cleared');\"",
+    "start": "bun run kill-ports && concurrently -n api,terminal,frontend -c blue,yellow,green \"cd server && bun --watch run index.ts\" \"cd server && bun run terminal.ts\" \"cd frontend && bun run dev --host\"",
     "start:api": "cd server && bun --watch run index.ts",
     "start:terminal": "cd server && bun run terminal.ts",
     "start:frontend": "cd frontend && bun run dev --host"