diff --git a/public/js/tg.js b/public/js/tg.js
index 22c8aa6..d06f2d3 100644
--- a/public/js/tg.js
+++ b/public/js/tg.js
@@ -1,9 +1,7 @@
 // Telegram WebApp SDK обёртки
 const TG = window.Telegram?.WebApp;
-if (TG) {
-  TG.ready();
-  TG.expand();
-}
+// isAvailable — только если есть initData (значит мы внутри Telegram)
+const TG_AVAILABLE = !!(TG && TG.initData);
 
 window.TG_APP = {
   initData: TG?.initData || '',
@@ -11,22 +9,31 @@ window.TG_APP = {
   user: TG?.initDataUnsafe?.user || null,
   colorScheme: TG?.colorScheme || 'light',
 
-  isAvailable: !!TG,
+  isAvailable: TG_AVAILABLE,
 
-  close: () => TG?.close(),
-  sendData: (data) => TG?.sendData(JSON.stringify(data)),
+  close: () => { if (TG_AVAILABLE) TG.close(); },
+  sendData: (data) => { if (TG_AVAILABLE) TG.sendData(JSON.stringify(data)); },
   haptic: (type) => {
+    if (!TG_AVAILABLE) return;
     try {
-      TG?.HapticFeedback?.impactOccurred(type || 'light');
+      TG.HapticFeedback?.impactOccurred(type || 'light');
     } catch (e) {}
   },
   showAlert: (msg) => {
-    if (TG?.showAlert) TG.showAlert(msg);
-    else alert(msg);
+    try {
+      if (TG_AVAILABLE && TG.showAlert) TG.showAlert(String(msg));
+      else alert(String(msg));
+    } catch (e) {
+      try { alert(String(msg)); } catch {}
+    }
   },
   showConfirm: (msg) => {
-    if (TG?.showConfirm) return new Promise((r) => TG.showConfirm(msg, r));
-    return Promise.resolve(confirm(msg));
+    try {
+      if (TG_AVAILABLE && TG.showConfirm) return new Promise((r) => TG.showConfirm(msg, r));
+      return Promise.resolve(confirm(String(msg)));
+    } catch (e) {
+      try { return Promise.resolve(confirm(String(msg))); } catch { return Promise.resolve(false); }
+    }
   },
 
   theme: () => TG?.themeParams || {},