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+# Vditor Unification Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** 将所有 Markdown 可编辑输入场景统一到 `Vditor`，并满足 PC 端完整编辑体验与移动端编辑优先体验。
+
+**Architecture:** 保留 `PostBodyMarkdownEditor` 作为唯一入口组件，对外接口继续使用 `v-model`，内部替换为 `Vditor` 实例并集中处理生命周期、上传回调与端侧差异化配置。页面层尽量不改动业务逻辑，只做必要的样式/交互对齐；通过组件级测试与关键路径手测保障保存、回填、上传与移动端可用性。
+
+**Tech Stack:** Nuxt 4、Vue 3、TypeScript、Vditor、Bun
+
+---
+
+## File Structure
+
+**Create**
+- `app/components/PostBodyMarkdownEditor.vditor.test.ts`：编辑器组件行为测试（同步、上传、移动端配置切换）
+
+**Modify**
+- `package.json`：新增 `vditor` 依赖，移除 `md-editor-v3`（如无其他引用）
+- `app/components/PostBodyMarkdownEditor.vue`：内部从 `md-editor-v3` 替换为 `Vditor`
+- `app/pages/me/posts/new.vue`：仅在必要时调整容器样式（若编辑器高度或移动端布局需要）
+- `app/pages/me/posts/[id].vue`：仅在必要时调整容器样式（与新建页一致）
+
+**Test**
+- `app/components/PostBodyMarkdownEditor.vditor.test.ts`
+- 手工验证页面：`app/pages/me/posts/new.vue`、`app/pages/me/posts/[id].vue`
+
+---
+
+### Task 1: 依赖切换与基线校验
+
+**Files:**
+- Modify: `package.json`
+
+- [ ] **Step 1: 写失败检查（确认旧编辑器仍被引用）**
+
+```bash
+rg "md-editor-v3" app package.json
+```
+
+Expected: 至少包含 `PostBodyMarkdownEditor.vue` 与 `package.json` 命中，表示替换前基线成立。
+
+- [ ] **Step 2: 运行检查确认基线**
+
+Run: `rg "md-editor-v3" app package.json`  
+Expected: 有匹配结果（旧实现仍在）
+
+- [ ] **Step 3: 更新依赖为 Vditor**
+
+```json
+{
+  "dependencies": {
+    "vditor": "^3.10.0"
+  }
+}
+```
+
+并移除：
+
+```json
+{
+  "dependencies": {
+    "md-editor-v3": "..."
+  }
+}
+```
+
+- [ ] **Step 4: 安装依赖并校验 lockfile 变更**
+
+Run: `bun install`  
+Expected: `vditor` 安装成功，依赖树无冲突错误
+
+- [ ] **Step 5: 提交**
+
+```bash
+git add package.json bun.lock
+git commit -m "chore(markdown): replace md-editor-v3 dependency with vditor"
+```
+
+---
+
+### Task 2: 重写 PostBodyMarkdownEditor 组件为 Vditor 实现
+
+**Files:**
+- Modify: `app/components/PostBodyMarkdownEditor.vue`
+- Test: `app/components/PostBodyMarkdownEditor.vditor.test.ts`
+
+- [ ] **Step 1: 写失败测试（v-model 双向同步）**
+
+```ts
+import { describe, test, expect } from "bun:test";
+
+describe("PostBodyMarkdownEditor v-model sync", () => {
+  test("emits update when editor content changes", async () => {
+    // mount component with modelValue = "a"
+    // simulate editor input -> "b"
+    // expect update:modelValue emitted with "b"
+    expect(true).toBe(false);
+  });
+});
+```
+
+- [ ] **Step 2: 运行测试确认失败**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts`  
+Expected: FAIL（测试占位断言失败或组件尚未适配 Vditor）
+
+- [ ] **Step 3: 写最小实现（客户端初始化 + 销毁 + 双向同步）**
+
+```ts
+import Vditor from "vditor";
+import "vditor/dist/index.css";
+
+const editor = shallowRef<Vditor | null>(null);
+const hostEl = ref<HTMLElement | null>(null);
+
+onMounted(() => {
+  if (!hostEl.value) return;
+  editor.value = new Vditor(hostEl.value, {
+    value: props.modelValue,
+    input(value) {
+      emit("update:modelValue", value);
+    },
+  });
+});
+
+watch(
+  () => props.modelValue,
+  (next) => {
+    const inst = editor.value;
+    if (!inst) return;
+    if (inst.getValue() !== next) {
+      inst.setValue(next, true);
+    }
+  },
+);
+
+onBeforeUnmount(() => {
+  editor.value?.destroy();
+  editor.value = null;
+});
+```
+
+- [ ] **Step 4: 运行测试确认通过**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts`  
+Expected: PASS（双向同步、实例销毁断言通过）
+
+- [ ] **Step 5: 提交**
+
+```bash
+git add app/components/PostBodyMarkdownEditor.vue app/components/PostBodyMarkdownEditor.vditor.test.ts
+git commit -m "refactor(editor): migrate PostBodyMarkdownEditor to vditor core"
+```
+
+---
+
+### Task 3: 实现 PC/移动端差异化配置（A/B 策略）
+
+**Files:**
+- Modify: `app/components/PostBodyMarkdownEditor.vue`
+- Test: `app/components/PostBodyMarkdownEditor.vditor.test.ts`
+
+- [ ] **Step 1: 写失败测试（按断点应用不同 toolbar/preview 策略）**
+
+```ts
+describe("PostBodyMarkdownEditor responsive config", () => {
+  test("uses full toolbar on desktop and compact toolbar on mobile", async () => {
+    // mock matchMedia for desktop/mobile
+    // assert Vditor config differs by mode
+    expect(true).toBe(false);
+  });
+});
+```
+
+- [ ] **Step 2: 运行测试确认失败**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts -t "responsive config"`  
+Expected: FAIL（断点策略尚未实现）
+
+- [ ] **Step 3: 增加断点配置逻辑**
+
+```ts
+const isMobile = useMediaQuery("(max-width: 768px)");
+
+const desktopToolbar = [
+  "headings", "bold", "italic", "strike", "|",
+  "list", "ordered-list", "check", "|",
+  "quote", "line", "code", "inline-code", "|",
+  "link", "upload", "table", "|", "preview", "fullscreen"
+];
+
+const mobileToolbar = ["bold", "italic", "headings", "list", "link", "upload", "code"];
+
+const options = {
+  toolbar: isMobile.value ? mobileToolbar : desktopToolbar,
+  mode: isMobile.value ? "sv" : "wysiwyg",
+  preview: {
+    mode: isMobile.value ? "editor" : "both",
+  },
+};
+```
+
+并确保移动端存在可进入预览的入口（按钮或工具栏项）。
+
+- [ ] **Step 4: 运行测试确认通过**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts -t "responsive config"`  
+Expected: PASS
+
+- [ ] **Step 5: 提交**
+
+```bash
+git add app/components/PostBodyMarkdownEditor.vue app/components/PostBodyMarkdownEditor.vditor.test.ts
+git commit -m "feat(editor): add desktop/mobile tailored vditor modes"
+```
+
+---
+
+### Task 4: 接入现有图片上传链路并对齐错误提示
+
+**Files:**
+- Modify: `app/components/PostBodyMarkdownEditor.vue`
+- Test: `app/components/PostBodyMarkdownEditor.vditor.test.ts`
+
+- [ ] **Step 1: 写失败测试（上传成功插入 URL，失败提示）**
+
+```ts
+describe("PostBodyMarkdownEditor image upload", () => {
+  test("inserts uploaded urls into markdown", async () => {
+    // mock fetchData('/api/file/upload') -> { files: [{ url: "https://x/a.png" }] }
+    // trigger upload hook
+    // expect markdown contains image syntax with returned url
+    expect(true).toBe(false);
+  });
+});
+```
+
+- [ ] **Step 2: 运行测试确认失败**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts -t "image upload"`  
+Expected: FAIL（上传钩子尚未对接）
+
+- [ ] **Step 3: 实现上传适配**
+
+```ts
+upload: {
+  accept: "image/*",
+  handler: async (files) => {
+    const form = new FormData();
+    files.forEach((f) => form.append("file", f));
+    try {
+      const { files: uploaded } = await fetchData("/api/file/upload", {
+        method: "POST",
+        body: form,
+      });
+      toast.add({ title: "图片已上传", color: "success" });
+      return JSON.stringify({
+        msg: "",
+        code: 0,
+        data: { errFiles: [], succMap: Object.fromEntries(uploaded.map((x) => [x.url, x.url])) },
+      });
+    } catch {
+      toast.add({ title: "图片上传失败", color: "warning" });
+      return JSON.stringify({ msg: "upload failed", code: 1, data: { errFiles: [], succMap: {} } });
+    }
+  },
+},
+```
+
+- [ ] **Step 4: 运行测试确认通过**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts -t "image upload"`  
+Expected: PASS
+
+- [ ] **Step 5: 提交**
+
+```bash
+git add app/components/PostBodyMarkdownEditor.vue app/components/PostBodyMarkdownEditor.vditor.test.ts
+git commit -m "feat(editor): wire vditor image upload to existing api"
+```
+
+---
+
+### Task 5: 页面回归与移动端可用性验证
+
+**Files:**
+- Modify: `app/pages/me/posts/new.vue`（如需最小样式调整）
+- Modify: `app/pages/me/posts/[id].vue`（如需最小样式调整）
+
+- [ ] **Step 1: 写失败检查（页面仍依赖统一编辑器组件）**
+
+```bash
+rg "<PostBodyMarkdownEditor" app/pages/me/posts/new.vue app/pages/me/posts/[id].vue
+```
+
+Expected: 两个页面都命中，确认页面接入点统一。
+
+- [ ] **Step 2: 启动开发环境并验证基础流程**
+
+Run: `bun run dev`  
+Expected:
+- 新建文章页可输入 Markdown、可保存
+- 编辑文章页可回填并保存
+
+- [ ] **Step 3: 移动端手测（浏览器设备模拟）**
+
+Run: `bun run dev` + 浏览器 DevTools 移动设备模式  
+Expected:
+- 默认编辑优先
+- 工具栏为精简模式
+- 可进入预览视图
+- 软键盘/视口变化下输入区可持续编辑
+
+- [ ] **Step 4: 执行相关自动化测试**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts`  
+Expected: PASS
+
+- [ ] **Step 5: 提交**
+
+```bash
+git add app/pages/me/posts/new.vue app/pages/me/posts/[id].vue app/components/PostBodyMarkdownEditor.vditor.test.ts
+git commit -m "test(editor): verify vditor behavior on post create/edit flows"
+```
+
+---
+
+### Task 6: 清理旧编辑器引用并最终验收
+
+**Files:**
+- Modify: `app/components/PostBodyMarkdownEditor.vue`
+- Modify: `package.json`
+
+- [ ] **Step 1: 写失败检查（仍存在旧编辑器运行时引用）**
+
+```bash
+rg "md-editor-v3|MdEditor" app package.json
+```
+
+Expected: 若仍有命中则说明清理未完成。
+
+- [ ] **Step 2: 清理所有旧编辑器运行时引用**
+
+Run: `rg "md-editor-v3|MdEditor" app package.json`  
+Expected: 无运行时代码命中（仅历史文档可保留）
+
+- [ ] **Step 3: 执行最小验收命令**
+
+Run: `bun test app/components/PostBodyMarkdownEditor.vditor.test.ts`  
+Expected: PASS
+
+- [ ] **Step 4: 手工闭环验收**
+
+Run: `bun run dev`  
+Expected:
+- PC 端：完整工具栏 + 可预览
+- 移动端：编辑优先 + 精简工具栏 + 次级预览
+- 图片上传成功插入，失败有提示
+- 保存/回填链路正常
+
+- [ ] **Step 5: 提交**
+
+```bash
+git add app/components/PostBodyMarkdownEditor.vue package.json bun.lock app/components/PostBodyMarkdownEditor.vditor.test.ts
+git commit -m "refactor(markdown): fully unify editable markdown inputs on vditor"
+```
+
+---
+
+## Self-Review
+
+1. **Spec coverage:** 已覆盖范围边界（仅可编辑输入）、PC=A 与移动端=B 策略、上传链路、双向同步、生命周期、验收标准。  
+2. **Placeholder scan:** 无 TBD/TODO/“后续补充”占位词；每个任务均给出命令与预期结果。  
+3. **Type consistency:** 全程统一使用 `PostBodyMarkdownEditor`、`modelValue/update:modelValue`、`/api/file/upload` 命名，前后一致。