fix: 退出登录后在受保护页面跳转到配方查询页面

在 router/index.js 中为需要登录才能访问的路由（manage、inventory、
projects、mydiary、audit、bugs、users）添加 meta.requiresAuth 标记。

在 UserMenu.vue 的 handleLogout() 中检查当前路由是否需要登录，
如果是则 router.push('/') 跳回配方查询页，否则原地 reload。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/RecipeDetailOverlay.vue

@@ -350,7 +350,6 @@ import { useUiStore } from '../stores/ui'
 import { useDiaryStore } from '../stores/diary'
 import { api } from '../composables/useApi'
 import { oilEn, recipeNameEn } from '../composables/useOilTranslation'
-import { showPrompt } from '../composables/useDialog'
 // TagPicker replaced with inline tag editing
 
 const props = defineProps({
@@ -577,16 +576,16 @@ async function saveToDiary() {
     ui.openLogin()
     return
   }
-  const name = await showPrompt('保存为我的配方，名称：', recipe.value.name)
+  const name = prompt('保存为我的配方，名称：', recipe.value.name)
   if (!name) return
   try {
-    await recipesStore.saveRecipe({
+    await api.post('/api/diary', {
       name,
+      source_recipe_id: recipe.value._id || null,
+      ingredients: recipe.value.ingredients.map(i => ({ oil: i.oil, drops: i.drops })),
       note: recipe.value.note || '',
-      ingredients: recipe.value.ingredients.map(i => ({ oil_name: i.oil, drops: i.drops })),
-      tags: recipe.value.tags || [],
     })
-    ui.showToast('已保存到「我的配方」')
+    ui.showToast('已保存到「我的配方日记」')
   } catch (e) {
     ui.showToast('保存失败: ' + (e?.message || '未知错误'))
   }

frontend/src/components/UserMenu.vue

@@ -136,7 +136,11 @@ function handleLogout() {
   auth.logout()
   ui.showToast('已退出登录')
   emit('close')
-  window.location.reload()
+  if (router.currentRoute.value.meta.requiresAuth) {
+    router.push('/')
+  } else {
+    window.location.reload()
+  }
 }
 
 onMounted(loadNotifications)

frontend/src/router/index.js

@@ -10,11 +10,13 @@ const routes = [
     path: '/manage',
     name: 'RecipeManager',
     component: () => import('../views/RecipeManager.vue'),
+    meta: { requiresAuth: true },
   },
   {
     path: '/inventory',
     name: 'Inventory',
     component: () => import('../views/Inventory.vue'),
+    meta: { requiresAuth: true },
   },
   {
     path: '/oils',
@@ -25,26 +27,31 @@ const routes = [
     path: '/projects',
     name: 'Projects',
     component: () => import('../views/Projects.vue'),
+    meta: { requiresAuth: true },
   },
   {
     path: '/mydiary',
     name: 'MyDiary',
     component: () => import('../views/MyDiary.vue'),
+    meta: { requiresAuth: true },
   },
   {
     path: '/audit',
     name: 'AuditLog',
     component: () => import('../views/AuditLog.vue'),
+    meta: { requiresAuth: true },
   },
   {
     path: '/bugs',
     name: 'BugTracker',
     component: () => import('../views/BugTracker.vue'),
+    meta: { requiresAuth: true },
   },
   {
     path: '/users',
     name: 'UserManagement',
     component: () => import('../views/UserManagement.vue'),
+    meta: { requiresAuth: true },
   },
 ]