Refactor and enhance MCP client and server functionality

- Removed prueba_cliente_mcp.py as it was no longer needed.
- Updated prueba_loop_agente.py to integrate MCPServerRunner for managing server instances.
- Modified prueba_mcp.py to implement a new structure for starting and stopping MCP servers.
- Enhanced AgenteAI class to support multiple MCP blocks execution.
- Improved MCPClient with timeout handling for tool calls.
- Added new sandbox files for children's stories.
- Created a simple ERP system with a main entry point.
- Added unit tests for the ERP system.
- Implemented MCPServerRunner to manage server processes.
- Developed server_files.py to handle file operations securely within a sandbox environment.
- Introduced ElementoWeb and Navegador classes for web scraping functionalities.
- Enhanced Scrapper and Tab classes for better interaction with web pages.

src/ScrappingWeb/Scrapper.py

@@ -0,0 +1,69 @@
+import aiohttp
+import websockets
+import json
+import asyncio
+from src.ScrappingWeb.Tab import Tab
+
+class Scrapper:
+    def __init__(self, debugging_url: str = "http://127.0.0.1:9222"):
+        self.debugging_url = debugging_url
+        self.tabs: list[Tab] = []
+
+    async def _crear_tab_websocket_url(self, target_url: str = "about:blank") -> str:
+        """
+        Crea una nueva pestaña usando el método oficial Target.createTarget
+        y devuelve su WebSocketDebuggerUrl.
+        """
+        # 1. Obtener el WebSocket general del browser (root)
+        async with aiohttp.ClientSession() as session:
+            async with session.get(f"{self.debugging_url}/json/version") as resp:
+                if resp.status != 200:
+                    raise RuntimeError("No se pudo obtener información del navegador")
+                data = await resp.json()
+                browser_ws_url = data["webSocketDebuggerUrl"]
+
+        # 2. Conectarse al WebSocket del browser
+        async with websockets.connect(browser_ws_url) as websocket:
+            # 3. Enviar comando para crear target
+            msg_id = 1
+            await websocket.send(json.dumps({
+                "id": msg_id,
+                "method": "Target.createTarget",
+                "params": {
+                    "url": target_url,
+                    "newWindow": False
+                }
+            }))
+
+            # 4. Esperar respuesta con el targetId
+            while True:
+                respuesta = await websocket.recv()
+                data = json.loads(respuesta)
+                if data.get("id") == msg_id:
+                    target_id = data["result"]["targetId"]
+                    break
+
+        # 5. Esperar a que el target aparezca en /json
+        for _ in range(30):  # máximo ~3 segundos
+            await asyncio.sleep(0.1)
+            async with aiohttp.ClientSession() as session:
+                async with session.get(f"{self.debugging_url}/json") as resp:
+                    if resp.status == 200:
+                        tabs = await resp.json()
+                        for tab in tabs:
+                            if tab.get("id") == target_id:
+                                return tab["webSocketDebuggerUrl"]
+
+        raise RuntimeError("No se pudo obtener el WebSocket de la nueva pestaña")
+
+    async def nueva_tab(self, url: str, wait_time: float = 5.0) -> Tab:
+        websocket_url = await self._crear_tab_websocket_url()
+        tab = await Tab.crear_desde_websocket(websocket_url)
+        self.tabs.append(tab)
+        await tab.navegar(url, wait_time)
+        return tab
+
+    async def cerrar_todos(self):
+        for tab in list(self.tabs):
+            await tab.cerrar()
+        self.tabs.clear()