feat: 变更名限制为中文、英文和短横线

tests/integration/flow.test.ts

@@ -153,3 +153,24 @@ describe("完整 SDD 流程", () => {
     expect(taskDoc!.dependMet).toBe(true);
   });
 });
+
+describe("变更名校验", () => {
+  it("合法变更名（中文、英文、短横线）通过校验", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const config = await loadConfig(TMP_DIR);
+    await mkdir(getChangeDir(TMP_DIR, "用户-login"), { recursive: true });
+    await writeFile(join(getChangeDir(TMP_DIR, "用户-login"), "design.md"), "# 设计");
+    await writeFile(join(getChangeDir(TMP_DIR, "用户-login"), "task.md"), "- [ ] 任务");
+    const prompt = await assemblePlanPrompt(config, TMP_DIR, "用户-login", "design");
+    expect(prompt).toContain("用户-login");
+  });
+
+  it("非法变更名（空格、下划线、特殊符号）被拒绝", () => {
+    const validRegex = /^[\u4e00-\u9fa5a-zA-Z-]+$/;
+    expect(validRegex.test("my change")).toBe(false);
+    expect(validRegex.test("my_change")).toBe(false);
+    expect(validRegex.test("my-change!")).toBe(false);
+    expect(validRegex.test("my.change")).toBe(false);
+    expect(validRegex.test("")).toBe(false);
+  });
+});