[#3227] feat(leetcode): add c# and golang solution

problems/3227-vowels-game-in-a-string/csharp/Program.cs

@@ -0,0 +1,24 @@
+// LeetCode 3227: Vowels Game In A String
+// 難度: Medium
+// 日期: 2025-09-12
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+public class Solution {
+    public bool DoesAliceWin(string s)
+    {
+        string vowels = "aeiou";
+
+        foreach (var character in s)
+        {
+            if (vowels.Contains(character))
+            {
+                return true;
+            }
+        }
+        return false;
+    }
+}
+

problems/3227-vowels-game-in-a-string/csharp/csharp.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+</Project>