feat: Add WebMCP token polling for automatic browser connection

- Add token API endpoint to server for storing/retrieving pending tokens
- Add token polling in frontend to auto-detect and connect with tokens
- Add xterm dependencies for terminal functionality
- Add terminal page support in toolRegistry

server/index.ts

@@ -4,6 +4,9 @@ import { spawn, type IPty } from '@skitee3000/bun-pty'
 const PORT_HTTP = 4101
 const PORT_TERMINAL = 4103
 
+// WebMCP token storage (in-memory, for passing token to browser)
+let pendingWebMCPToken: { token: string; createdAt: Date } | null = null
+
 // Terminal types
 interface TerminalSession {
   id: string
@@ -299,6 +302,43 @@ Bun.serve({
       return Response.json({ status: 'ok', timestamp: new Date().toISOString() }, { headers: corsHeaders })
     }
 
+    // WebMCP Token API - para pasar token al browser
+    if (url.pathname === '/api/webmcp-token') {
+      if (req.method === 'GET') {
+        if (pendingWebMCPToken) {
+          // Check if token is not expired (5 minutes)
+          const age = Date.now() - pendingWebMCPToken.createdAt.getTime()
+          if (age < 5 * 60 * 1000) {
+            return Response.json({
+              token: pendingWebMCPToken.token,
+              createdAt: pendingWebMCPToken.createdAt.toISOString()
+            }, { headers: corsHeaders })
+          }
+          // Token expired
+          pendingWebMCPToken = null
+        }
+        return Response.json({ token: null }, { headers: corsHeaders })
+      }
+
+      if (req.method === 'POST') {
+        const body = await req.json()
+        if (body.token) {
+          pendingWebMCPToken = {
+            token: body.token,
+            createdAt: new Date()
+          }
+          console.log('[WebMCP] Token received and stored')
+          return Response.json({ success: true }, { headers: corsHeaders })
+        }
+        return Response.json({ error: 'Token required' }, { status: 400, headers: corsHeaders })
+      }
+
+      if (req.method === 'DELETE') {
+        pendingWebMCPToken = null
+        return Response.json({ success: true }, { headers: corsHeaders })
+      }
+    }
+
     // API de Componentes Vue
     if (url.pathname === '/api/components') {
       if (req.method === 'GET') {