Refine use cases rule examples

tests/unit/useCaseTemplateDuplicate.test.ts

@@ -0,0 +1,16 @@
+import { describe, expect, it } from "vitest";
+import { useCaseTemplateDuplicateTitle } from "../../lib/useCaseTemplateDuplicate";
+
+describe("useCaseTemplateDuplicateTitle", () => {
+  it("appends Template (Copy) to the source title", () => {
+    expect(useCaseTemplateDuplicateTitle("BoCo Street Medics")).toBe(
+      "BoCo Street Medics Template (Copy)",
+    );
+  });
+
+  it("falls back when the source title is empty", () => {
+    expect(useCaseTemplateDuplicateTitle("   ")).toBe(
+      "Community Rule Template (Copy)",
+    );
+  });
+});