.NET 10 and few minor things

src/Backend/DiunaBI.UI.Shared/wwwroot/js/auth.js

@@ -5,9 +5,23 @@ window.initGoogleSignIn = function(clientId) {
         console.log("Google Sign-In already initialized");
         return;
     }
-    
-    console.log("🔐 Initializing Google Sign-In (ID Token flow) with clientId:", clientId);
-    
+
+    console.log("🔐 Initializing Google Sign-In (ID Token flow)");
+    console.log("📋 Received clientId:", clientId);
+    console.log("📋 ClientId type:", typeof clientId);
+    console.log("📋 ClientId length:", clientId ? clientId.length : 0);
+
+    if (!clientId || clientId === '' || clientId === 'null' || clientId === 'undefined') {
+        console.error("❌ Invalid clientId received:", clientId);
+        throw new Error("ClientId is null, empty, or invalid");
+    }
+
+    // Check if Google library is loaded
+    if (typeof google === 'undefined' || !google.accounts || !google.accounts.id) {
+        console.error("❌ Google Sign-In library not loaded yet!");
+        throw new Error("Google Sign-In library not ready");
+    }
+
     // Używamy google.accounts.id - zwraca ID token (JWT credential)
     google.accounts.id.initialize({
         client_id: clientId,
@@ -15,7 +29,7 @@ window.initGoogleSignIn = function(clientId) {
         auto_select: false,
         cancel_on_tap_outside: true
     });
-    
+
     googleInitialized = true;
     console.log("✅ Google Sign-In initialized successfully");
 };