新增: 三实体列表查询维度补全(status/关键词/排序/分页下沉后端)

任务/项目/灵感三实体新增 list_by_query 动态 WHERE(累积式 where_clauses
+params_vec 收口)+ order_by 白名单防注入 + limit/offset 钳制。命令层
list_{tasks,projects,ideas} 吃 Option<XxxQuery> 双参向后兼容(旧无参/单参
路径等价全量)。前端 Tasks/Ideas status/keyword 筛选下沉后端 query。

F-260621-02

src/views/Ideas.vue

@@ -126,8 +126,7 @@ import { useRouter, useRoute } from 'vue-router'
 import { useI18n } from 'vue-i18n'
 import { Message } from '@arco-design/web-vue'
 import { useProjectStore } from '../stores/project'
-import type { IdeaStatus } from '../api/types'
-import { parseTags } from '../stores/knowledge'
+import type { IdeaStatus, IdeaQuery } from '../api/types'
 import { formatDate } from '../utils/time'
 import { stripMd } from '../utils/markdown'
 import ConfirmDialog from '../components/ConfirmDialog.vue'
@@ -181,38 +180,61 @@ function statusLabelKey(status: IdeaStatus): string {
   return statusOptions.find(s => s.value === status)?.labelKey ?? status
 }
 
+// ── 后端查询构造(F-260621-02:status/keyword/order_by 下沉后端 WHERE) ──
+//
+// status 下沉:单一状态(all→不限 / promoted→promoted)走后端精确匹配;
+// hot(按 score≥80)与 pending(多状态 draft+pending_review)无法映射单一后端 status,
+// 仍在前端 filter(轻量,数据量小;后端 status 仅单值,扩多值属过度设计)。
+// keyword/title+description LIKE、order_by(排序)全下沉后端,避免前端全表扫描/重排。
+function buildIdeaQuery(): IdeaQuery {
+  const q: IdeaQuery = {}
+  // 排序下沉后端(score/time)
+  q.order_by = sortMode.value === 'score' ? 'score' : 'created_at'
+  // keyword 下沉后端(title/description LIKE)
+  if (searchQuery.value.trim()) {
+    q.keyword = searchQuery.value.trim()
+  }
+  // 单一状态映射:promoted → status=promoted;all/hot/pending 不走单一 status
+  if (activeFilter.value === 'promoted') {
+    q.status = 'promoted'
+  }
+  return q
+}
+
+// 按当前筛选/搜索/排序触发后端加载(防抖仅对 keyword 输入,筛选/排序即时)。
+// 让 store.loading 驱动「加载中」空态显示(对齐 Tasks.vue 三态)。
+let keywordDebounce: ReturnType<typeof setTimeout> | null = null
+async function reloadIdeas(immediate = false) {
+  if (keywordDebounce) {
+    clearTimeout(keywordDebounce)
+    keywordDebounce = null
+  }
+  const run = () => store.loadIdeas(buildIdeaQuery())
+  if (immediate) {
+    await run()
+  } else {
+    keywordDebounce = setTimeout(() => { void run() }, 300)
+  }
+}
+
+// 筛选/排序变化即时重载;keyword 输入防抖重载
+watch(activeFilter, () => void reloadIdeas(true))
+watch(sortMode, () => void reloadIdeas(true))
+watch(searchQuery, () => void reloadIdeas(false))
+
 const filteredIdeas = computed(() => {
   let ideas = store.ideas
 
-  // 应用状态过滤
+  // hot(按 score≥80)/pending(多状态 draft+pending_review)保留前端 filter:
+  // 后端 status 仅单值,无法表达 OR,扩多值属过度设计;数据量小,前端 filter 轻量。
   switch (activeFilter.value) {
     case 'hot': ideas = ideas.filter(i => (i.score ?? 0) >= 80); break
     case 'pending': ideas = ideas.filter(i => i.status === 'pending_review' || i.status === 'draft'); break
-    case 'promoted': ideas = ideas.filter(i => i.status === 'promoted'); break
-    default: break // 不过滤
+    default: break // all / promoted:后端已过滤,前端不再 filter
   }
 
-  // 应用搜索过滤
-  if (searchQuery.value.trim()) {
-    const query = searchQuery.value.toLowerCase().trim()
-    ideas = ideas.filter(i =>
-      i.title.toLowerCase().includes(query) ||
-      (i.description && i.description.toLowerCase().includes(query)) ||
-      parseTags(i.tags).some((tag: string) => tag.toLowerCase().includes(query))
-    )
-  }
-
-  // 排序:在过滤+搜索之后、return 之前对最终数组排序
-  // [...ideas] 浅拷贝避免改原数组(store.ideas)
-  const sorted = [...ideas].sort((a, b) => {
-    if (sortMode.value === 'score') {
-      return (b.score ?? 0) - (a.score ?? 0) // 高分在前
-    }
-    // time:created_at 为毫秒字符串,字符串比较即可(同位数字典序等价数值序)
-    return (b.created_at ?? '').localeCompare(a.created_at ?? '') // 新在前
-  })
-
-  return sorted
+  // 排序与 keyword 已下沉后端(buildIdeaQuery),前端不再重排/重过滤。
+  return ideas
 })
 
 const currentIdea = computed(() => {
@@ -279,7 +301,7 @@ async function promoteToProject() {
 }
 
 async function refresh() {
-  await store.loadIdeas()
+  await store.loadIdeas(buildIdeaQuery())
 }
 
 const evaluating = ref(false)
@@ -318,7 +340,7 @@ async function onUpdateRelated(ids: string[]) {
 }
 
 onMounted(async () => {
-  await store.loadIdeas()
+  await store.loadIdeas(buildIdeaQuery())
   // 从路由参数恢复选中灵感（修复 /ideas/:id 直接访问空白页 B-260615-36）
   if (route.params.id) {
     const id = route.params.id as string