feat: extract MyAgent core and web console

tests/MyAgent.Tests/Storage/SafePathSegmentTests.cs

@@ -0,0 +1,27 @@
+using MyAgent.Storage;
+using Xunit;
+
+namespace MyAgent.Tests.Storage;
+
+public sealed class SafePathSegmentTests
+{
+    [Theory]
+    [InlineData(".")]
+    [InlineData("..")]
+    [InlineData("../other")]
+    [InlineData("group/name")]
+    [InlineData("group\\name")]
+    public void Normalize_RejectsPathTraversal(string value)
+    {
+        Assert.Throws<ArgumentException>(() => SafePathSegment.Normalize(value, "groupId"));
+    }
+
+    [Theory]
+    [InlineData("915449089")]
+    [InlineData("demo-group")]
+    [InlineData("user_1")]
+    public void Normalize_AcceptsStableIdentifiers(string value)
+    {
+        Assert.Equal(value, SafePathSegment.Normalize(value, "id"));
+    }
+}