chore(core): Add Uuid.parse

packages/celest_core/lib/src/util/uuid.dart

@@ -8,6 +8,18 @@ class Uuid {
 
   factory Uuid.v7() => Uuid._(_uuidv7());
 
+  factory Uuid.parse(String uuid) {
+    final buffer = Uint8List(16);
+    var i = 0;
+    for (var j = 0; j < uuid.length; j += 2) {
+      if (uuid[j] == '-') {
+        j++;
+      }
+      buffer[i++] = int.parse(uuid.substring(j, j + 2), radix: 16);
+    }
+    return Uuid._(buffer);
+  }
+
   final Uint8List value;
 
   static bool _addSeparator(int i) => i == 4 || i == 6 || i == 8 || i == 10;

packages/celest_core/test/util/uuid_test.dart

@@ -0,0 +1,12 @@
+import 'package:celest_core/_internal.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Uuid', () {
+    test('v7', () {
+      final uuid = Uuid.v7();
+      final rt = Uuid.parse(uuid.hexValue);
+      expect(uuid.value, rt.value);
+    });
+  });
+}