Resolved conflicts

src/main/java/net/gepafin/tendermanagement/util/Utils.java

@@ -778,4 +778,12 @@ public class Utils {
 			return Double.NaN;  // Return NaN if the expression is invalid
 		}
 	}
+	public static boolean isNumeric(String input) {
+		if (input == null || input.trim().isEmpty()) {
+			return false;
+		}
+
+		return input.matches("-?\\d+(\\.\\d+)?");
+	}
+
 }