feat(client): 财务应收应付汇总增加往来单位搜索（两端，原型同步）

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

design/prototype/screens/finance.html

@@ -28,6 +28,8 @@
   .sec-head{display:flex; align-items:baseline; gap:10px; margin:0 0 12px;}
   .sec-head h2{margin:0; font-size:var(--fs-h2); color:var(--heading); font-weight:700;}
   .sec-head .sh-sub{font-size:var(--fs-xs); color:var(--muted);}
+  /* 汇总卡头部往来单位搜索（即时本地过滤，非 combo 单选） */
+  .sec-head .sum-search{margin-left:auto; width:220px; align-self:center;}
   .block{margin-bottom:22px;}
 
   /* ====== 新增原子：条形图 .barchart / .bar ====== */
@@ -108,7 +110,9 @@
 
       <!-- 4. 应收/应付 汇总表 -->
       <div class="block">
-        <div class="sec-head"><h2>应收 / 应付 汇总</h2><span class="sh-sub">按往来单位 · 点击行查看流水</span></div>
+        <div class="sec-head"><h2>应收 / 应付 汇总</h2><span class="sh-sub">按往来单位 · 点击行查看流水</span>
+          <div class="searchbox sum-search"><svg viewBox="0 0 24 24"><use href="#i-search"/></svg><input id="sumSearch" placeholder="搜索往来单位…" oninput="sumKw=this.value; buildSummary();"></div>
+        </div>
         <div class="table"><table>
           <thead><tr><th>往来单位</th><th class="num">应收</th><th class="num">应付</th><th class="num">净额</th><th class="act">操作</th></tr></thead>
           <tbody id="sumBody"></tbody>
@@ -181,19 +185,23 @@ const SUMMARY=[
   {name:'川渝糖酒集团',recv:0,pay:60400}
 ];
 function yuan(n){ return '¥'+n.toLocaleString(); }
+// 汇总卡「往来单位」搜索：本地即时过滤（数据已全量加载，非服务端分页，搜索口径=显示口径）
+let sumKw='';
 function buildSummary(){
-  document.getElementById('sumBody').innerHTML=SUMMARY.map((s,i)=>{
+  const q=sumKw.trim().toLowerCase();
+  const rows=SUMMARY.map((s,i)=>({...s,i})).filter(s=>!q||s.name.toLowerCase().includes(q));
+  document.getElementById('sumBody').innerHTML=rows.length?rows.map(s=>{
     const net=s.recv-s.pay;
     const netCls=net>0?'net-pos':(net<0?'net-neg':'');
     const netTxt=(net>0?'+':'')+yuan(net);
-    return `<tr class="click" onclick="openPartner(${i})">
+    return `<tr class="click" onclick="openPartner(${s.i})">
       <td class="pname">${s.name}</td>
       <td class="num">${s.recv?yuan(s.recv):'—'}</td>
       <td class="num">${s.pay?yuan(s.pay):'—'}</td>
       <td class="num ${netCls}">${netTxt}</td>
-      <td class="act" onclick="event.stopPropagation()"><span class="link" onclick="openPartner(${i})">查看</span></td>
+      <td class="act" onclick="event.stopPropagation()"><span class="link" onclick="openPartner(${s.i})">查看</span></td>
     </tr>`;
-  }).join('');
+  }).join(''):`<tr><td colspan="5"><div class="empty">没有匹配的往来单位</div></td></tr>`;
 }
 
 /* ---- 5. 收支流水 ---- */

design/prototype/screens/m-finance.html

@@ -38,6 +38,9 @@
       <div class="k"><div class="kl">应付合计</div><div class="kv">¥9.6万</div><div class="kd warn">5 笔未结</div></div>
     </div>
     <div class="seg" style="width:100%; margin-top:14px"><button class="on" style="flex:1" onclick="setTab('ar')">应收</button><button style="flex:1" onclick="setTab('ap')">应付</button><button style="flex:1" onclick="setTab('flow')">流水</button></div>
+    <!-- 应收/应付分段头部往来单位搜索（同口径本地过滤，仅 ar/ap 显示；流水分段
+         沿用上方时间行「往来单位」chip → sheet 单选，不重复） -->
+    <div class="m-search" id="sumSearchRow" style="margin-top:12px"><svg viewBox="0 0 24 24"><use href="#i-search"/></svg><input id="sumKwInput" placeholder="搜索往来单位…" oninput="sumKw=this.value; render();"></div>
     <div class="m-section" id="cnt">应收账款</div>
     <div id="list"></div>
   </div>
@@ -100,15 +103,22 @@ function drawPartnerOpts(kw){
 }
 function setFlowParty(v){ flowParty=v; closeSheet(); render(); }
 
+// 应收/应付分段「往来单位」搜索：本地即时过滤（数据已全量加载，搜索口径=显示口径）
+let sumKw='';
 function render(){
   const cfg={ar:['应收账款',AR],ap:['应付账款',AP],flow:['资金流水',FLOW]}[tab];
   // 往来单位筛选仅作用于「流水」分段（对应真实端 financeListProvider.setPartner 只过滤流水表）
-  const rows=tab==='flow'?cfg[1].filter(r=>flowParty==='全部'||r.party.split(' · ')[0]===flowParty):cfg[1];
+  let rows=tab==='flow'?cfg[1].filter(r=>flowParty==='全部'||r.party.split(' · ')[0]===flowParty):cfg[1];
+  document.getElementById('sumSearchRow').style.display=tab==='flow'?'none':'flex';
+  if(tab!=='flow'){
+    const q=sumKw.trim().toLowerCase();
+    if(q) rows=rows.filter(r=>r.party.toLowerCase().includes(q));
+  }
   document.getElementById('cnt').textContent=`${cfg[0]} · 共 ${rows.length}`;
-  document.getElementById('list').innerHTML=rows.map(r=>`<div class="m-card"><div class="m-row">
+  document.getElementById('list').innerHTML=rows.length?rows.map(r=>`<div class="m-card"><div class="m-row">
     <div class="mc-main"><div class="mc-nm">${r.party}</div><div class="mc-sub">${r.date}</div></div>
     <div class="mc-right"><span class="badge b-${r.status}">${r.status}</span><span class="mc-amt">${r.amt}</span></div>
-  </div></div>`).join('');
+  </div></div>`).join(''):`<div class="m-empty"><svg viewBox="0 0 24 24"><use href="#i-box"/></svg>${tab==='flow'?'暂无数据':'没有匹配的往来单位'}</div>`;
   document.getElementById('partyVal').textContent=flowParty==='全部'?'':flowParty;
   document.getElementById('chipParty').classList.toggle('on',flowParty!=='全部');
 }