fix: viewer只能看到和管理自己个人配方的标签，不显示公共库标签

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/views/RecipeManager.vue

@@ -83,7 +83,7 @@
       </div>
       <div class="candidate-tags">
         <span
-          v-for="tag in recipeStore.allTags.filter(t => !batchTagsSelected.includes(t))"
+          v-for="tag in visibleAllTags.filter(t => !batchTagsSelected.includes(t))"
           :key="tag"
           class="candidate-tag"
           @click="batchTagsSelected.push(tag)"
@@ -1308,9 +1308,13 @@ const previewRecipeIndex = ref(null)
 const previewRecipeData = ref(null)
 const showBatchMenu = ref(false)
 const visibleAllTags = computed(() => {
-  const tags = recipeStore.allTags
-  if (auth.canEdit) return tags
-  return tags.filter(t => !EDITOR_ONLY_TAGS.includes(t))
+  if (auth.canEdit) return recipeStore.allTags
+  // Viewer: only show tags from their own diary recipes
+  const myTags = new Set()
+  for (const d of diaryStore.userDiary) {
+    for (const t of (d.tags || [])) myTags.add(t)
+  }
+  return [...myTags].sort((a, b) => a.localeCompare(b, 'zh'))
 })
 const showBatchTagPicker = ref(false)
 const batchTagsSelected = ref([])