Reorganize project into standard root layout

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

webterm/slugify_test.go

@@ -0,0 +1,53 @@
+package webterm
+
+import (
+	"regexp"
+	"testing"
+)
+
+var validSlugPattern = regexp.MustCompile(`^[a-z0-9_-]*$`)
+
+func TestSlugifyBasic(t *testing.T) {
+	cases := []struct {
+		in, want string
+	}{
+		{"Hello World", "hello-world"},
+		{"My App 2.0!", "my-app-20"},
+		{"---padded---", "padded"},
+		{"", ""},
+	}
+	for _, tc := range cases {
+		got := Slugify(tc.in)
+		if got != tc.want {
+			t.Errorf("Slugify(%q) = %q, want %q", tc.in, got, tc.want)
+		}
+	}
+}
+
+func FuzzSlugify(f *testing.F) {
+	f.Add("Hello World")
+	f.Add("My App 2.0!")
+	f.Add("---padded---")
+	f.Add("")
+	f.Add("café résumé")
+	f.Add("日本語テスト")
+	f.Add("a" + string([]byte{0x00, 0x01}) + "b")
+	f.Add(string(make([]byte, 1024)))
+
+	f.Fuzz(func(t *testing.T, input string) {
+		result := Slugify(input)
+		// Result must only contain lowercase alphanumeric and hyphens
+		if !validSlugPattern.MatchString(result) {
+			t.Errorf("Slugify(%q) = %q contains invalid characters", input, result)
+		}
+		// Result must not start or end with hyphen/underscore
+		if len(result) > 0 {
+			if result[0] == '-' || result[0] == '_' {
+				t.Errorf("Slugify(%q) = %q starts with separator", input, result)
+			}
+			if result[len(result)-1] == '-' || result[len(result)-1] == '_' {
+				t.Errorf("Slugify(%q) = %q ends with separator", input, result)
+			}
+		}
+	})
+}