feat: 新增 assembleCreatePrompt，plan/build/archive 不再内嵌文件内容

tests/core/assembler.test.ts

@@ -3,12 +3,14 @@ import { mkdir, writeFile, rm } from "node:fs/promises";
 import { join } from "node:path";
 import {
   assembleDiscussPrompt,
+  assembleCreatePrompt,
   assemblePlanPrompt,
   assembleBuildPrompt,
   assembleArchivePrompt,
 } from "../../src/core/assembler.ts";
 import type { RuneConfig } from "../../src/types.ts";
 import { defaultConfig } from "../../src/defaults/config.ts";
+import { CommandError } from "../../src/cli/errors.ts";
 
 const TMP_DIR = join(import.meta.dir, "__tmp_assembler_test__");
 
@@ -38,6 +40,35 @@ describe("assembleDiscussPrompt", () => {
   });
 });
 
+describe("assembleCreatePrompt", () => {
+  it("返回默认 create 提示词", () => {
+    const prompt = assembleCreatePrompt(defaultConfig);
+    expect(prompt).toBeTruthy();
+    expect(prompt).toContain("变更名称");
+    expect(prompt).toContain("/rune-plan");
+  });
+
+  it("返回自定义 create 提示词", () => {
+    const config: RuneConfig = {
+      stages: { create: { prompt: "自定义创建" } },
+    };
+    const prompt = assembleCreatePrompt(config);
+    expect(prompt).toBe("自定义创建");
+  });
+
+  it("create 阶段未配置时抛出 CommandError", () => {
+    const config: RuneConfig = {
+      stages: { build: { prompt: "构建" } },
+    };
+    try {
+      assembleCreatePrompt(config);
+      expect.unreachable();
+    } catch (e) {
+      expect(e).toBeInstanceOf(CommandError);
+    }
+  });
+});
+
 describe("assemblePlanPrompt", () => {
   it("包含指定文档名称和提示词", async () => {
     const prompt = await assemblePlanPrompt(defaultConfig, TMP_DIR, "user-auth", "design");
@@ -46,13 +77,14 @@ describe("assemblePlanPrompt", () => {
     expect(prompt).not.toContain("task");
   });
 
-  it("包含已有文档内容（重复 plan 场景）", async () => {
+  it("已有文档时引导 AI 读取而非内嵌内容", async () => {
     const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
     await mkdir(changeDir, { recursive: true });
     await writeFile(join(changeDir, "design.md"), "# 已有设计");
     const prompt = await assemblePlanPrompt(defaultConfig, TMP_DIR, "user-auth", "design");
-    expect(prompt).toContain("已有设计");
-    expect(prompt).toContain("在此基础上修订");
+    expect(prompt).toContain("已有内容");
+    expect(prompt).toContain("design.md");
+    expect(prompt).not.toContain("# 已有设计");
   });
 
   it("替换模板中的 {{change-name}}", async () => {
@@ -123,14 +155,15 @@ describe("assemblePlanPrompt", () => {
 });
 
 describe("assembleBuildPrompt", () => {
-  it("包含待执行任务列表", async () => {
+  it("引导 AI 读取 task.md 而非内嵌任务内容", async () => {
     const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
     await mkdir(changeDir, { recursive: true });
     await writeFile(join(changeDir, "task.md"), `- [x] 任务一\n- [ ] 任务二\n- [ ] 任务三`);
     const prompt = await assembleBuildPrompt(defaultConfig, TMP_DIR, "user-auth");
-    expect(prompt).toContain("任务二");
-    expect(prompt).toContain("待执行任务");
-    expect(prompt).toContain("共 2 项");
+    expect(prompt).toContain("task.md");
+    expect(prompt).toContain("2");
+    expect(prompt).not.toContain("任务二");
+    expect(prompt).not.toContain("任务三");
   });
 
   it("所有任务完成时提示可归档", async () => {
@@ -218,7 +251,7 @@ describe("assembleArchivePrompt", () => {
     expect(prompt).not.toContain("未完成");
   });
 
-  it("tracked=true 时读取 task.md 并注入未完成任务警告", async () => {
+  it("tracked=true 时引导 AI 检查 task.md 而非内嵌任务内容", async () => {
     const changeDir = join(TMP_DIR, ".rune", "changes", "user-auth");
     await mkdir(changeDir, { recursive: true });
     await writeFile(join(changeDir, "task.md"), "- [ ] 未完成任务");
@@ -227,8 +260,9 @@ describe("assembleArchivePrompt", () => {
       metadata: { tracked: true },
     };
     const prompt = await assembleArchivePrompt(config, TMP_DIR, "user-auth");
+    expect(prompt).toContain("task.md");
     expect(prompt).toContain("未完成");
-    expect(prompt).toContain("未完成任务");
+    expect(prompt).not.toContain("- [ ] 未完成任务");
   });
 
   it("tracked=true 且所有任务完成时不注入警告", async () => {