refactor: create 从 SDD 阶段降级为工具命令，移除阶段配置和提示词

tests/cli/create.test.ts

@@ -0,0 +1,108 @@
+import { describe, it, expect, beforeEach, afterEach } from "bun:test";
+import { existsSync } from "node:fs";
+import { mkdir, rm } from "node:fs/promises";
+import { join } from "node:path";
+import { runInit } from "../../src/commands/init.ts";
+import { loadConfig, getChangeDir } from "../../src/core/config.ts";
+import { assemblePlanPrompt } from "../../src/core/assembler.ts";
+import { CommandError } from "../../src/cli/errors.ts";
+
+const TMP_DIR = join(import.meta.dir, "__tmp_create_test__");
+
+beforeEach(async () => {
+  await mkdir(TMP_DIR, { recursive: true });
+});
+
+afterEach(async () => {
+  await rm(TMP_DIR, { recursive: true, force: true });
+});
+
+describe("create 命令（工具命令，非 SDD 阶段）", () => {
+  it("创建变更目录成功", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const changeDir = getChangeDir(TMP_DIR, "user-auth");
+    await mkdir(changeDir, { recursive: true });
+    expect(existsSync(changeDir)).toBe(true);
+  });
+
+  it("重复创建同名变更目录应报错", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const changeDir = getChangeDir(TMP_DIR, "duplicate-test");
+    await mkdir(changeDir, { recursive: true });
+    expect(existsSync(changeDir)).toBe(true);
+    // 再次创建同名目录不会报错（mkdir recursive），但 create 命令会检查
+    // 模拟 create 命令的检查逻辑
+    const prefix = "bunx @lanyuanxiaoyao/rune";
+    if (existsSync(changeDir)) {
+      // 应该抛出 CommandError
+      const err = new CommandError(`变更 "duplicate-test" 已存在`, {
+        hint: `请使用其他名称，或运行 ${prefix} status 查看现有变更`,
+      });
+      expect(err.message).toContain("duplicate-test");
+      expect(err.message).toContain("已存在");
+    }
+  });
+
+  it("create 后不再输出阶段提示词内容", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    // 验证 create 不在 stages 配置中
+    const config = await loadConfig(TMP_DIR);
+    expect(config.stages.create).toBeUndefined();
+  });
+
+  it("create 不是 SDD 阶段常量之一", async () => {
+    const { STAGES } = await import("../../src/types.ts");
+    expect(STAGES).not.toContain("create");
+    expect(STAGES).toHaveLength(4);
+  });
+});
+
+describe("plan 命令前置检查", () => {
+  it("plan 在变更目录不存在时报错并提示 create", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const config = await loadConfig(TMP_DIR);
+
+    // 模拟 plan 命令检查：目录不存在
+    const changeDir = getChangeDir(TMP_DIR, "nonexistent-change");
+    expect(existsSync(changeDir)).toBe(false);
+
+    // 验证 plan 会报错
+    try {
+      await assemblePlanPrompt(config, TMP_DIR, "nonexistent-change", "design");
+      // assemblePlanPrompt 不检查目录存在，由 cli.ts 中的 plan 命令检查
+      // 这里只验证可以正常生成提示词（目录不存在不影响提示词生成）
+    } catch (e: any) {
+      // 如果抛错，应该不是由目录不存在引起的
+      expect(e.message).not.toContain("不存在");
+    }
+  });
+
+  it("plan 在变更目录存在时能正常生成提示词", async () => {
+    await runInit(TMP_DIR, ["opencode"]);
+    const config = await loadConfig(TMP_DIR);
+
+    const changeDir = getChangeDir(TMP_DIR, "existing-change");
+    await mkdir(changeDir, { recursive: true });
+
+    const prompt = await assemblePlanPrompt(config, TMP_DIR, "existing-change", "design");
+    expect(prompt).toBeTruthy();
+    expect(prompt).toContain("existing-change");
+    expect(prompt).toContain("design");
+  });
+});
+
+describe("变更名校验", () => {
+  it("合法变更名通过", () => {
+    const validRegex = /^[\u4e00-\u9fa5a-zA-Z-]+$/;
+    expect(validRegex.test("user-auth")).toBe(true);
+    expect(validRegex.test("用户登录")).toBe(true);
+    expect(validRegex.test("中文-english")).toBe(true);
+  });
+
+  it("非法变更名被拒绝", () => {
+    const validRegex = /^[\u4e00-\u9fa5a-zA-Z-]+$/;
+    expect(validRegex.test("my change")).toBe(false);
+    expect(validRegex.test("my_change")).toBe(false);
+    expect(validRegex.test("")).toBe(false);
+  });
+});