diff --git a/agent.user.js b/agent.user.js
index 4938a15..7839b98 100644
--- a/agent.user.js
+++ b/agent.user.js
@@ -3,7 +3,8 @@
 // @namespace    http://baf.thuanle.me
 // @version      2025.07.31
 // @author       TL
-// @match        https://www.binance.com/en/alpha/bsc/*
+// @description  Automated trading agent for Binance Alpha Farm
+// @match        https://www.binance.com/*
 // @run-at       document-idle
 // @grant        GM_setValue
 // @grant        GM_getValue
@@ -20,6 +21,20 @@
 (async () => {
     'use strict';
 
+    // ====== Servers ======
+    const BAF_SERVERS = {
+        local: { label: '🏠 Local', url: 'http://localhost:3000' },
+        prod: { label: '🌐 Prod', url: 'https://baf.thuanle.me' },
+    };
+
+
+    const CONFIG = {
+        heartbeat_interval: 10000,
+        is_debug: false,
+    }
+
+
+
     // ====== Storage ======
     const STORAGE = {
         key_token: 'baf-agent-token',
@@ -31,18 +46,15 @@
         setServerMode: (mode) => GM_setValue(STORAGE.key_server_mode, mode),
     };
 
-    // ====== Servers (có icon) ======
-    const BAF_SERVERS = {
-        local: { label: '🏠 Local', url: 'http://localhost:3000' },
-        prod: { label: '🌐 Prod', url: 'https://baf.thuanle.me' },
-    };
 
 
 
     // ====== Utility ======
     const TL = {
-        log: (msg, ...args) => GM_log(`[TL]\n${msg}`, ...args),
-        error: (msg, ...args) => GM_log(`[TL] [ERROR] ❌\n${msg}`, ...args),
+        debug: (tag, msg, ...args) => CONFIG.is_debug && GM_log(`[TL] [${tag}]\n${msg}`, ...args),
+        log: (tag, msg, ...args) => GM_log(`[TL] [${tag}]\n${msg}`, ...args),
+        error: (tag, msg, ...args) => GM_log(`[TL] [ERROR] [${tag}] ❌\n${msg}`, ...args),
+
         noti: (title, text, timeout = 2500) => {
             if (typeof GM_notification === 'function') {
                 GM_notification({ title, text, timeout });
@@ -58,7 +70,7 @@
 
 
     // ====== DOM helpers ======
-    TL.ui = {
+    TL.dom = {
         isVisible: (el) => {
             if (!el) return false;
             const cs = getComputedStyle(el);
@@ -109,7 +121,7 @@
                         let data = text;
                         const isJSON = /content-type:\s*application\/json/i.test(resp.responseHeaders || '');
                         if (isJSON) { try { data = JSON.parse(text); } catch { } }
-                        TL.log(`${init.method} ${resp.status} ${url}`, data);
+                        TL.debug(`net`,`${init.method} ${resp.status} ${url}`, data);
                         resolve({
                             status: resp.status,
                             ok: resp.status >= 200 && resp.status < 300,
@@ -162,7 +174,7 @@
         get: (path, params, init = {}) => BAF.request('GET', path, { params, headers: init.headers }),
         post: (path, body, init = {}) => BAF.request('POST', path, { body, headers: init.headers }),
 
-        ping: () => BAF.post('/agent/ping'),
+        ping: (status) => BAF.post('/agent/ping', status),
     };
 
     // ====== Cấu hình menu ======
@@ -175,13 +187,13 @@
                 await STORAGE.setServerMode(next);
                 const nsv = await BAF.getServer();
                 const msg = `Switched to ${nsv.label} (${nsv.url})`;
-                TL.log(msg);
+                TL.debug(`BAF`,msg);
                 TL.noti('BAF Server Switched', msg);
 
                 await TL.delay(300);
                 location.reload();
             } catch (e) {
-                TL.error('switch server error', e);
+                TL.error('BAF','switch server error', e);
                 TL.noti('BAF Server Switched', `Switch server error: ${e.message}`);
             }
         });
@@ -198,11 +210,11 @@
                 const resStr =
                     `Server: ${s.label} (${s.url})\n` +
                     `Status: ${res.ok ? 'Connected ✅' : 'Failed ❌'} (${res.status})`;
-                TL.log(resStr);
+                TL.debug(`BAF`,resStr);
                 TL.noti('BAF Server', resStr);
             } catch (e) {
                 const resStr = `ping error: ${e.message}`;
-                TL.error(resStr);
+                TL.error('BAF',resStr);
                 TL.noti('BAF Server', resStr);
             }
         });
@@ -215,7 +227,7 @@
             const loginBtn = document.querySelector('#toLoginPage');
             const regBtn = document.querySelector('#toRegisterPage');
 
-            if (TL.dom.isVisible?.(loginBtn) || TL.dom.isVisible?.(regBtn)) return false;
+            if (TL.dom.isVisible?.(loginBtn) || TL.ui.isVisible?.(regBtn)) return false;
             if (!loginBtn && !regBtn) return true;
 
             return null; // đang load hoặc chưa rõ
@@ -223,17 +235,18 @@
 
         isLoggedIn: async (timeoutMs = 6000, pollMs = 200) => {
             const deadline = Date.now() + timeoutMs;
+            TL.debug(`BINANCE`,`isLoggedIn: Checking login state...`);
             while (Date.now() < deadline) {
                 const state = BINANCE.detectLoginState();
                 if (state !== null) {
-                    TL.log(`[BINANCE] isLoggedIn => ${state ? 'true' : 'false'}`);
                     return state;
                 }
+                TL.debug(`BINANCE`,`isLoggedIn: not found. Sleeping...`);
                 await TL.delay(pollMs);
             }
 
             const fallback = BINANCE.detectLoginState() ?? false;
-            TL.log(`[BINANCE] isLoggedIn (timeout, fallback) => ${fallback ? 'true' : 'false'}`);
+            TL.debug(`BINANCE`,`isLoggedIn (timeout, fallback) => ${fallback ? 'true' : 'false'}`);
             return fallback;
         },
     };
@@ -241,18 +254,38 @@
 
     // ====== Main ======
     async function welcome_message() {
-
         const s = await BAF.getServer();
         const res = await BAF.ping();
+
         const resStr =
             `Server: ${s.label} (${s.url})\n` +
-            `Status: ${res.ok ? 'Connected ✅' : 'Failed ❌'} (${res.status})`;
+            `Status: ${res.ok ? 'Connected ✅' : 'Failed ❌'} (${res.status})\n`;
 
-        TL.log(resStr);
+        TL.log(`BAF`,resStr);
     }
 
+    // ====== Heartbeat ======
+    async function heartbeat_report() {
+        try {
+            const isLoggedIn = await BINANCE.isLoggedIn();
+
+            const status = {
+                logged_in: isLoggedIn
+            };
+
+            // Log heartbeat
+            TL.debug(`HEARTBEAT`,`${JSON.stringify(status, null, 2)}`);
+            await BAF.ping(status);
+            return status;
+        } catch (e) {
+            TL.error('HEARTBEAT', e.message);
+            return null;
+        }
+    }
 
     // ====== Khởi tạo ======
     await welcome_message();
     await createGM_Menu();
+    setInterval(heartbeat_report, CONFIG.heartbeat_interval);
+
 })();
\ No newline at end of file