Fix: save privkey before git push test

Author: melvincarvalho

index.html

@@ -823,6 +823,9 @@ <h2>Add Repository</h2>
           return;
         }
 
+        // Save privkey first so pushRepo can access it
+        setPrivkey(privkey);
+
         setGitTesting(true);
         setGitTestResult(null);