iniciada creacion del mcp

mcp/lib/api.js

@@ -0,0 +1,15 @@
+export const API_BASE_URL = process.env.PLANILLA_API_URL || "http://localhost:4000";
+
+export async function fetchJSON(path, options = {}) {
+  const method = options.method || "GET";
+  console.log(`[API] ${method} ${API_BASE_URL}${path}`);
+  const res = await fetch(`${API_BASE_URL}${path}`, {
+    headers: { "Content-Type": "application/json" },
+    ...options,
+  });
+  if (!res.ok) {
+    const txt = await res.text();
+    throw new Error(`API request failed (${res.status}): ${txt}`);
+  }
+  return res.json();
+}