feat(scheduling): add batch filter and sort controls for candidate list

- Batch dropdown filter (全部批次 / per target name)
- Sort by 替换后预计 (asc/desc toggle)
- Sort by 当前里程 (asc/desc toggle)
- Active sort button highlighted in blue
- Display count shows filtered/total (e.g. "3/12 辆")

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

src/modules/scheduling/SuggestionDetail.tsx

@@ -1,12 +1,15 @@
-import { useState } from 'react';
+import { useState, useMemo } from 'react';
 import {
-  X, MapPin, AlertTriangle, CheckCircle, ArrowDown, ArrowUp, ArrowRight,
+  X, MapPin, AlertTriangle, CheckCircle, ArrowDown, ArrowUp, ArrowRight, ArrowUpDown,
 } from 'lucide-react';
 import { motion } from 'motion/react';
 import type { SchedulingSuggestion, CandidateVehicle } from './types';
 import Blur from '../../components/Blur';
 import SwapPreview from './SwapPreview';
 
+type SortKey = 'predicted' | 'current';
+type SortDir = 'asc' | 'desc';
+
 interface Props {
   suggestion: SchedulingSuggestion;
   onClose: () => void;
@@ -25,10 +28,36 @@ function fmtRate(rate: number): string {
 export default function SuggestionDetail({ suggestion: s, onClose, onNotifySuccess }: Props) {
   const [previewCandidate, setPreviewCandidate] = useState<CandidateVehicle | null>(null);
   const [sentPlates, setSentPlates] = useState<Set<string>>(new Set());
+  const [batchFilter, setBatchFilter] = useState<string>('');
+  const [sortKey, setSortKey] = useState<SortKey>('predicted');
+  const [sortDir, setSortDir] = useState<SortDir>('desc');
 
   const v = s.currentVehicle;
   const isRescue = s.type === 'rescue_hopeless';
 
+  // Batch options from candidates
+  const batchOptions = useMemo(() => {
+    const set = new Set<string>();
+    for (const c of s.candidates) if (c.targetName) set.add(c.targetName);
+    return [...set].sort();
+  }, [s.candidates]);
+
+  // Filtered + sorted candidates
+  const displayCandidates = useMemo(() => {
+    let list = s.candidates;
+    if (batchFilter) list = list.filter(c => c.targetName === batchFilter);
+    return [...list].sort((a, b) => {
+      const va = sortKey === 'predicted' ? a.predictedAfterSwap : a.totalMileage;
+      const vb = sortKey === 'predicted' ? b.predictedAfterSwap : b.totalMileage;
+      return sortDir === 'desc' ? vb - va : va - vb;
+    });
+  }, [s.candidates, batchFilter, sortKey, sortDir]);
+
+  const toggleSort = (key: SortKey) => {
+    if (sortKey === key) { setSortDir(d => d === 'desc' ? 'asc' : 'desc'); }
+    else { setSortKey(key); setSortDir('desc'); }
+  };
+
   return (
     <div className="fixed inset-0 bg-black/50 backdrop-blur-sm z-[60] flex items-end sm:items-center justify-center" onClick={onClose}>
       <motion.div
@@ -116,15 +145,48 @@ export default function SuggestionDetail({ suggestion: s, onClose, onNotifySucce
 
           {/* Candidates */}
           <div className="px-4 py-3">
-            <div className="mb-2.5">
-              <div className="flex items-center justify-between">
-                <span className="text-xs font-bold text-slate-700">当前区域所有可替换在库车辆</span>
-                <span className="text-[10px] text-slate-400">{s.candidates.length} 辆</span>
-              </div>
+            <div className="flex items-center justify-between mb-1.5">
+              <span className="text-xs font-bold text-slate-700">当前区域可替换在库车辆</span>
+              <span className="text-[10px] text-slate-400">{displayCandidates.length}/{s.candidates.length} 辆</span>
+            </div>
+
+            {/* Filter + Sort controls */}
+            <div className="flex items-center gap-2 mb-2.5 flex-wrap">
+              {/* Batch filter */}
+              <select
+                value={batchFilter}
+                onChange={e => setBatchFilter(e.target.value)}
+                className="text-[10px] px-2 py-1 rounded-lg border border-slate-200 bg-white text-slate-600 cursor-pointer outline-none"
+              >
+                <option value="">全部批次</option>
+                {batchOptions.map(b => <option key={b} value={b}>{b}</option>)}
+              </select>
+
+              {/* Sort buttons */}
+              <button
+                onClick={() => toggleSort('predicted')}
+                className={`text-[10px] px-2 py-1 rounded-lg border flex items-center gap-1 cursor-pointer transition-colors ${
+                  sortKey === 'predicted' ? 'border-blue-300 bg-blue-50 text-blue-700' : 'border-slate-200 text-slate-500'
+                }`}
+              >
+                替换后预计
+                {sortKey === 'predicted' && (sortDir === 'desc' ? <ArrowDown size={10} /> : <ArrowUp size={10} />)}
+                {sortKey !== 'predicted' && <ArrowUpDown size={10} />}
+              </button>
+              <button
+                onClick={() => toggleSort('current')}
+                className={`text-[10px] px-2 py-1 rounded-lg border flex items-center gap-1 cursor-pointer transition-colors ${
+                  sortKey === 'current' ? 'border-blue-300 bg-blue-50 text-blue-700' : 'border-slate-200 text-slate-500'
+                }`}
+              >
+                当前里程
+                {sortKey === 'current' && (sortDir === 'desc' ? <ArrowDown size={10} /> : <ArrowUp size={10} />)}
+                {sortKey !== 'current' && <ArrowUpDown size={10} />}
+              </button>
             </div>
 
             <div className="space-y-2">
-              {s.candidates.map(c => {
+              {displayCandidates.map(c => {
                 const sent = sentPlates.has(c.plateNumber);
                 return (
                   <div key={c.plateNumber} className="rounded-xl border border-slate-200 overflow-hidden bg-white">