feat(screener): 策略列标签折叠 — 表头全表开关 + 行级展开

- 默认收起: 每行显示前 N 个策略 + 计数 (跟随列设置"显示前N个", 未配置默认 3)
- 表头图标切换全表展开/收起, 收起时清除行级展开状态, 状态持久化
- 排列方向始终跟随列设置 tagLayout (展开不再强制横向)

frontend/src/components/screener/ScreenerTable.tsx

@@ -6,7 +6,7 @@
  * score、signals、candle、ext 列。其余纯数据列（价格/指标/财务…）交给共享原语。
  */
 import { useState, type CSSProperties, type ReactNode } from 'react'
-import { Check, Plus, Eye, EyeOff, RefreshCw } from 'lucide-react'
+import { Check, Plus, Eye, EyeOff, RefreshCw, ListCollapse, ListTree } from 'lucide-react'
 import type { KlineRow, MinuteKlineRow } from '@/lib/api'
 import { fmtPrice, formatExtNumber } from '@/lib/format'
 import type { ColumnConfig } from '@/lib/screener-columns'
@@ -50,12 +50,17 @@ interface ScreenerTableProps {
   onRefreshIntraday?: () => void
   /** 分时数据正在刷新中 (按钮 loading 态) */
   intradayRefreshing?: boolean
+  /** 策略列标签全表展开状态 (false=默认收起: 每行仅显示首个策略+计数) */
+  strategyTagsExpanded?: boolean
+  /** 表头策略列图标: 切换全表展开/收起 */
+  onToggleStrategyTags?: () => void
   /** 表头排序（受控，由 Screener.tsx 传入） */
   sort?: SortState | null
   onSortToggle?: (colId: string) => void
 }
 
-/** 渲染标签数组（含 maxTags 折叠/展开、横竖排列）。策略列与 ext 列共用。 */
+/** 渲染标签数组（含 maxTags 折叠/展开、横竖排列）。策略列与 ext 列共用。
+ *  maxTagsOverride: 调用方直接指定折叠上限 (策略列用: 全局展开=0 不折叠, 收起=1 只显首个)。 */
 function renderTagList(
   tags: string[],
   col: ColumnConfig,
@@ -63,11 +68,12 @@ function renderTagList(
   onToggle: () => void,
   tagClassName: string,
   onTagClick?: (tag: string) => void,
+  maxTagsOverride?: number,
 ): ReactNode {
   if (tags.length === 0) return <span className="text-muted">—</span>
 
   const cfg = col.extDisplay
-  const maxTags = cfg?.maxTags ?? 0
+  const maxTags = maxTagsOverride ?? cfg?.maxTags ?? 0
   const showAll = maxTags <= 0 || expanded || tags.length <= maxTags
   const sliced = showAll ? tags : tags.slice(0, maxTags)
   const hiddenIndices = maxTags > 0 ? cfg?.hiddenIndices : undefined
@@ -75,7 +81,8 @@ function renderTagList(
     ? sliced.filter((_, i) => !hiddenIndices.includes(i))
     : sliced
   const hiddenCount = tags.length - visibleTags.length
-  const isVertical = cfg?.tagLayout === 'vertical' && !expanded
+  // 排列方向始终跟随列设置: 竖向时收起/展开都竖排, 展开不再强制横向
+  const isVertical = cfg?.tagLayout === 'vertical'
 
   return (
     <div className={isVertical ? 'flex flex-col items-start gap-0.5' : 'flex flex-wrap gap-0.5'}>
@@ -153,6 +160,7 @@ export function ScreenerTable({
   dailyKChartVisible = true, onToggleDailyKChart,
   minuteData = {}, intradayChartVisible = true, onToggleIntradayChart,
   intradayAutoRefresh = false, onRefreshIntraday, intradayRefreshing = false,
+  strategyTagsExpanded = false, onToggleStrategyTags,
   sort, onSortToggle,
 }: ScreenerTableProps) {
   const [expandedCells, setExpandedCells] = useState<Set<string>>(new Set())
@@ -181,6 +189,19 @@ export function ScreenerTable({
     })
   }
 
+  // 策略列全表切换: 收起时清除该列的行级展开状态, 保证"收起"立即对全表生效
+  const strategiesColId = columns.find(c => c.source.type === 'builtin' && c.source.key === 'strategies')?.id
+  const handleToggleStrategyTags = () => {
+    if (strategyTagsExpanded && strategiesColId) {
+      const suffix = `::${strategiesColId}`
+      setExpandedCells(prev => {
+        const next = new Set([...prev].filter(k => !k.endsWith(suffix)))
+        return next.size === prev.size ? prev : next
+      })
+    }
+    onToggleStrategyTags?.()
+  }
+
   const renderCell = (r: any, col: ColumnConfig): ReactNode => {
     // ext 列
     if (col.source.type === 'ext') {
@@ -278,9 +299,13 @@ export function ScreenerTable({
         const tags = strats.map(sid => strategyIdToName[sid] ?? sid)
         const cellKey = `${r.symbol}::${col.id}`
         const expanded = expandedCells.has(cellKey)
+        // 收起时每行显示前N个 + "+N" 计数 (跟随列设置"显示前N个", 未配置默认 3),
+        // 点击计数/收起按钮可单独展开/收起本行; 全局展开: maxTags=0 全部显示不折叠
+        const cfgMaxTags = col.extDisplay?.maxTags ?? 0
+        const maxTags = strategyTagsExpanded ? 0 : (cfgMaxTags > 0 ? cfgMaxTags : 3)
         return (
           <td key={col.id} className="px-3 py-2">
-            {renderTagList(tags, col, expanded, () => toggleExpand(cellKey), STRATEGY_TAG_CLS)}
+            {renderTagList(tags, col, expanded, () => toggleExpand(cellKey), STRATEGY_TAG_CLS, undefined, maxTags)}
           </td>
         )
       }
@@ -435,6 +460,27 @@ export function ScreenerTable({
             </span>
           )
         }
+        // 策略列标签展开/收起开关 (命中多策略时行会很高, 默认收起只显首个+计数)
+        if (key === 'strategies' && onToggleStrategyTags) {
+          return (
+            <span className="inline-flex items-center justify-center gap-1.5">
+              <span>{col.label}</span>
+              <button
+                type="button"
+                onClick={(event) => { event.stopPropagation(); handleToggleStrategyTags() }}
+                className={`inline-flex items-center justify-center w-5 h-5 rounded transition-colors ${
+                  strategyTagsExpanded
+                    ? 'text-accent bg-accent/10 hover:bg-accent/20'
+                    : 'text-muted hover:text-foreground hover:bg-elevated'
+                }`}
+                title={strategyTagsExpanded ? '收起策略标签（每行仅显示前几个）' : '展开全部策略标签'}
+                aria-label={strategyTagsExpanded ? '收起策略标签' : '展开全部策略标签'}
+              >
+                {strategyTagsExpanded ? <ListTree className="h-3.5 w-3.5" /> : <ListCollapse className="h-3.5 w-3.5" />}
+              </button>
+            </span>
+          )
+        }
         return undefined
         }}
       />

frontend/src/lib/storage.ts

@@ -62,6 +62,9 @@ export const storage = {
   /** 策略结果列表分时图显示状态 */
   screenerIntraday:     kv<boolean>('screener_showIntraday'),
 
+  /** 策略结果列表"策略"列标签展开状态 (false=默认收起: 每行首个+计数, 行内可单独展开) */
+  screenerStrategyTags: kv<boolean>('screener_strategyTagsExpanded'),
+
   /** 自选列表板块筛选 */
   watchlistBoardFilter: kv<string[]>('watchlist_boardFilter'),
 

frontend/src/pages/Screener.tsx

@@ -77,6 +77,15 @@ export function Screener() {
       return next
     })
   }, [])
+  // 策略列标签全表展开/收起（命中多策略时行会很高；默认收起, 每行可单独展开；持久化）
+  const [strategyTagsExpanded, setStrategyTagsExpanded] = useState<boolean>(() => storage.screenerStrategyTags.get(false))
+  const toggleStrategyTags = useCallback(() => {
+    setStrategyTagsExpanded(v => {
+      const next = !v
+      storage.screenerStrategyTags.set(next)
+      return next
+    })
+  }, [])
   // 截断提示可关闭 (仅本次会话, 不持久化)
   const [intradayCapDismissed, setIntradayCapDismissed] = useState(false)
   const [showAll, setShowAll] = useState(false)
@@ -979,6 +988,8 @@ export function Screener() {
                     intradayAutoRefresh={intradayRefreshEnabled && realtimeRunning}
                     onRefreshIntraday={() => minuteBatch.refetch()}
                     intradayRefreshing={minuteBatch.isFetching}
+                    strategyTagsExpanded={strategyTagsExpanded}
+                    onToggleStrategyTags={toggleStrategyTags}
                     sort={sort}
                     onSortToggle={toggle}
                   />