Simplify numeric rank validation logic

Removed redundant check for string equality in numeric rank validation.

Author: meneogbemi42-bit

Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js

@@ -31,7 +31,7 @@ function getCardValue(card) {
 
   // Parse numeric ranks ("2" through "10")
   const numericValue = parseInt(rank, 10);
-  if (!isNaN(numericValue) && numericValue >= 2 && numericValue <= 10 && String(numericValue) === rank) {
+  if (!isNaN(numericValue) && numericValue >= 2 && numericValue <= 10) {
     return numericValue;
   }
 
@@ -93,4 +93,4 @@ assertThrows("A♣️");       // Suit variations or hidden characters
 assertThrows("Q⭐️");       // Invalid suit emoji
 assertThrows("J ♠");       // Unwanted spacing
 
-console.log("All tests completed!");
+console.log("All tests completed!");