feat: add Liquid filter ordinalize

tests/Unit/Liquid/Filters/DateTest.php

@@ -30,3 +30,66 @@ test('days_ago filter with large number works correctly', function (): void {
 
     expect($filter->days_ago(100))->toBe($hundredDaysAgo);
 });
+
+test('ordinalize filter formats date with ordinal day', function (): void {
+    $filter = new Date();
+
+    expect($filter->ordinalize('2025-10-02', '%A, %B <<ordinal_day>>, %Y'))
+        ->toBe('Thursday, October 2nd, 2025');
+});
+
+test('ordinalize filter handles datetime string with timezone', function (): void {
+    $filter = new Date();
+
+    expect($filter->ordinalize('2025-12-31 16:50:38 -0400', '%A, %b <<ordinal_day>>'))
+        ->toBe('Wednesday, Dec 31st');
+});
+
+test('ordinalize filter handles different ordinal suffixes', function (): void {
+    $filter = new Date();
+
+    // 1st
+    expect($filter->ordinalize('2025-01-01', '<<ordinal_day>>'))
+        ->toBe('1st');
+    
+    // 2nd
+    expect($filter->ordinalize('2025-01-02', '<<ordinal_day>>'))
+        ->toBe('2nd');
+    
+    // 3rd
+    expect($filter->ordinalize('2025-01-03', '<<ordinal_day>>'))
+        ->toBe('3rd');
+    
+    // 4th
+    expect($filter->ordinalize('2025-01-04', '<<ordinal_day>>'))
+        ->toBe('4th');
+    
+    // 11th (special case)
+    expect($filter->ordinalize('2025-01-11', '<<ordinal_day>>'))
+        ->toBe('11th');
+    
+    // 12th (special case)
+    expect($filter->ordinalize('2025-01-12', '<<ordinal_day>>'))
+        ->toBe('12th');
+    
+    // 13th (special case)
+    expect($filter->ordinalize('2025-01-13', '<<ordinal_day>>'))
+        ->toBe('13th');
+    
+    // 21st
+    expect($filter->ordinalize('2025-01-21', '<<ordinal_day>>'))
+        ->toBe('21st');
+    
+    // 22nd
+    expect($filter->ordinalize('2025-01-22', '<<ordinal_day>>'))
+        ->toBe('22nd');
+    
+    // 23rd
+    expect($filter->ordinalize('2025-01-23', '<<ordinal_day>>'))
+        ->toBe('23rd');
+    
+    // 24th
+    expect($filter->ordinalize('2025-01-24', '<<ordinal_day>>'))
+        ->toBe('24th');
+});
+