docs: 添加 nav swap 规格与计划文档

docs/superpowers/plans/2026-03-24-nav-swap.md

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+# Nav Swap Implementation Plan
+
+> **For agentic workers:** REQUIRED: Use superpowers:subagent-driven-development (if subagents available) or superpowers:executing-plans to implement this plan. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Swap the sidebar order so `连接列表` appears above `传输` without changing routing or behavior.
+
+**Architecture:** This is a template-only frontend change in the shared main layout. The implementation keeps the existing `RouterLink` blocks, active-state logic, click handlers, icons, and labels intact, and only reorders the two navigation entries in `frontend/src/layouts/MainLayout.vue`.
+
+**Tech Stack:** Vue 3, TypeScript, Vite, Tailwind CSS, vue-tsc
+
+---
+
+## File Structure
+
+- Modify: `frontend/src/layouts/MainLayout.vue`
+  - Contains the sidebar navigation template.
+  - Only the relative position of the `/connections` and `/transfers` `RouterLink` blocks should change.
+- Verify: `frontend/src/router/index.ts`
+  - Confirms the default redirect remains `/connections` and does not need modification.
+- Verify: `docs/superpowers/specs/2026-03-24-nav-swap-design.md`
+  - Source of truth for this tiny UI change.
+
+### Task 1: Reorder Sidebar Navigation Entries
+
+**Files:**
+- Modify: `frontend/src/layouts/MainLayout.vue`
+- Verify: `frontend/src/router/index.ts`
+- Verify: `docs/superpowers/specs/2026-03-24-nav-swap-design.md`
+
+- [ ] **Step 1: Check workspace state before editing**
+
+Review `git status` and confirm there are no unrelated user changes in `frontend/src/layouts/MainLayout.vue` that must be preserved. Do not revert unrelated modifications.
+
+- [ ] **Step 2: Inspect the existing sidebar navigation blocks**
+
+Confirm that `frontend/src/layouts/MainLayout.vue` currently renders the `RouterLink` for `/transfers` before the `RouterLink` for `/connections`, and verify that both links already contain the correct label, icon, `aria-label`, active-state class, and `@click="closeSidebar"` behavior.
+
+- [ ] **Step 3: Write the minimal implementation by swapping the two blocks**
+
+Move the entire `/connections` `RouterLink` block so it appears before the `/transfers` `RouterLink` block.
+
+Keep all existing content unchanged:
+
+```vue
+<RouterLink
+  to="/connections"
+  @click="closeSidebar"
+  class="flex items-center gap-3 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset"
+  :class="{ 'bg-slate-700 text-cyan-400': route.path === '/connections' }"
+  aria-label="连接列表"
+>
+  <Server class="w-5 h-5 flex-shrink-0" aria-hidden="true" />
+  <span>连接列表</span>
+</RouterLink>
+```
+
+```vue
+<RouterLink
+  to="/transfers"
+  @click="closeSidebar"
+  class="flex items-center gap-3 px-3 py-2.5 rounded-lg text-slate-300 hover:bg-slate-700 hover:text-slate-100 transition-colors duration-200 cursor-pointer min-h-[44px] focus:outline-none focus:ring-2 focus:ring-cyan-500 focus:ring-inset"
+  :class="{ 'bg-slate-700 text-cyan-400': route.path === '/transfers' }"
+  aria-label="传输"
+>
+  <ArrowLeftRight class="w-5 h-5 flex-shrink-0" aria-hidden="true" />
+  <span>传输</span>
+</RouterLink>
+```
+
+- [ ] **Step 4: Verify no route behavior changed**
+
+Read `frontend/src/router/index.ts` and confirm these lines are still untouched:
+
+```ts
+{
+  path: '',
+  name: 'Home',
+  redirect: '/connections',
+}
+```
+
+- [ ] **Step 5: Run the frontend verification build**
+
+Run: `npm run build` in `frontend/`
+
+Expected:
+- `vue-tsc -b` passes
+- Vite production build completes successfully
+
+- [ ] **Step 6: Manually verify the UI behavior**
+
+Check the sidebar in the app and confirm:
+- `连接列表` is above `传输`
+- Clicking each item still opens the same page
+- Active highlighting still matches the current route
+- Mobile sidebar uses the same order
+
+- [ ] **Step 7: Commit the focused change if requested**
+
+Only if the user asks for a commit:
+
+```bash
+git add frontend/src/layouts/MainLayout.vue
+git commit -m "fix: reorder sidebar navigation items"
+```