fix MCP auth token refresh and disable legacy SSE

mcp-server/config/index.js

@@ -40,6 +40,8 @@ export const LOCAL_SERVER_URL = process.env.LOCAL_SERVER_URL || 'http://localhos
 // Auth headers para llamadas internas al server Python
 export function getLocalServerHeaders() {
     const headers = { "Content-Type": "application/json" };
+    const authHeader = process.env.ACAI_AUTH_HEADER || "";
+    if (authHeader) headers["Authorization"] = authHeader;
     // En Forge, usar X-Acai-Token para auth interna
     const token = process.env.ACAI_TOKEN || "";
     const website = process.env.ACAI_WEBSITE || "";