fix: 拆分 formatWan 同名函数，修复管理总览金额标签泄漏

HEL-177 公司端 HTML 版 formatWan 覆盖了 HEL-155 管理端纯数字版，
导致 textContent 赋值处显示原始 span 标签。将公司端重命名为
formatWanHtml 并替换调用，管理端三处恢复纯文本万元显示。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

web/app.js

@@ -3395,7 +3395,7 @@ function yuanToWan(value) {
   return n / 10000;
 }
 
-function formatWan(value, { signed = false } = {}) {
+function formatWanHtml(value, { signed = false } = {}) {
   const wan = yuanToWan(value);
   if (wan === null) return "—";
   const abs = Math.abs(wan).toLocaleString("zh-CN", { minimumFractionDigits: 2, maximumFractionDigits: 2 });
@@ -3472,13 +3472,13 @@ function renderWorkspaceTransfersCard(summary) {
   const net = $("#wsTfNet");
   const pendingEl = $("#wsTfPending");
   const netLabel = $("#wsTfNetLabel");
-  if (inflow) inflow.innerHTML = formatWan(confirmed.inflow_total, { signed: true });
+  if (inflow) inflow.innerHTML = formatWanHtml(confirmed.inflow_total, { signed: true });
   if (outflow) {
-    outflow.innerHTML = formatWan(
+    outflow.innerHTML = formatWanHtml(
       confirmed.outflow_total != null ? -Math.abs(Number(confirmed.outflow_total)) : null,
       { signed: true },
     );
-    // formatWan with negative value already adds −; ensure unit
+    // formatWanHtml with negative value already adds −; ensure unit
     if (confirmed.outflow_total != null) {
       const wan = yuanToWan(confirmed.outflow_total);
       const abs = Math.abs(wan).toLocaleString("zh-CN", { minimumFractionDigits: 2, maximumFractionDigits: 2 });
@@ -3488,12 +3488,12 @@ function renderWorkspaceTransfersCard(summary) {
   if (netLabel) netLabel.textContent = `${netLabelForWindow(win)}${netMeta.label !== "持平" ? ` · ${netMeta.label}` : ""}`;
   if (net) {
     net.className = `ms-value ${netMeta.signedClass}`.trim();
-    net.innerHTML = formatWan(confirmed.net_change, { signed: true });
+    net.innerHTML = formatWanHtml(confirmed.net_change, { signed: true });
   }
   if (pendingEl) {
     const pCount = Number(pending.count) || 0;
     pendingEl.innerHTML = pCount
-      ? `${formatWan(pending.amount_total)}<span class="unit"> · ${pCount} 笔</span>`
+      ? `${formatWanHtml(pending.amount_total)}<span class="unit"> · ${pCount} 笔</span>`
       : `0.00<span class="unit">万元 · 0 笔</span>`;
   }
 }
@@ -3564,7 +3564,7 @@ function renderTransfersOverview(summary) {
   const netFoot = $("#tfStatNetFoot");
   const netMeta = netDirectionMeta(confirmed.net_change, confirmed.net_direction);
   if (companies) companies.innerHTML = `${cps.length}<span class="unit">家</span>`;
-  if (inflow) inflow.innerHTML = formatWan(confirmed.inflow_total, { signed: true });
+  if (inflow) inflow.innerHTML = formatWanHtml(confirmed.inflow_total, { signed: true });
   if (outflow) {
     const wan = yuanToWan(confirmed.outflow_total);
     const abs = wan === null ? "—" : Math.abs(wan).toLocaleString("zh-CN", { minimumFractionDigits: 2, maximumFractionDigits: 2 });
@@ -3575,7 +3575,7 @@ function renderTransfersOverview(summary) {
     const tag = netMeta.label !== "持平"
       ? ` <span class="xfer-dir-tag ${netMeta.className}">${netMeta.label}</span>`
       : "";
-    net.innerHTML = `${formatWan(confirmed.net_change, { signed: true })}${tag}`;
+    net.innerHTML = `${formatWanHtml(confirmed.net_change, { signed: true })}${tag}`;
   }
   if (netFoot) {
     netFoot.textContent = win.has_opening
@@ -3589,7 +3589,7 @@ function renderTransfersOverview(summary) {
   const tfPendingCount = $("#tfPendingCount");
   const tfPendingAmount = $("#tfPendingAmount");
   if (tfConfirmedCount) tfConfirmedCount.textContent = `${confirmedCount} 笔`;
-  if (tfConfirmedNet) tfConfirmedNet.innerHTML = formatWan(confirmed.net_change, { signed: true });
+  if (tfConfirmedNet) tfConfirmedNet.innerHTML = formatWanHtml(confirmed.net_change, { signed: true });
   const openingCard = $("#tfStatOpeningCard");
   const endingCard = $("#tfStatEndingCard");
   const openingEl = $("#tfStatOpening");
@@ -3597,15 +3597,15 @@ function renderTransfersOverview(summary) {
   if (win.has_opening) {
     if (openingCard) openingCard.hidden = false;
     if (endingCard) endingCard.hidden = false;
-    if (openingEl) openingEl.innerHTML = formatWan(win.opening, { signed: true });
+    if (openingEl) openingEl.innerHTML = formatWanHtml(win.opening, { signed: true });
-    if (endingEl) endingEl.innerHTML = formatWan(win.ending, { signed: true });
+    if (endingEl) endingEl.innerHTML = formatWanHtml(win.ending, { signed: true });
   } else {
     if (openingCard) openingCard.hidden = true;
     if (endingCard) endingCard.hidden = true;
   }
 
   if (tfPendingCount) tfPendingCount.textContent = `${pCount} 笔`;
-  if (tfPendingAmount) tfPendingAmount.innerHTML = formatWan(pending.amount_total || 0);
+  if (tfPendingAmount) tfPendingAmount.innerHTML = formatWanHtml(pending.amount_total || 0);
 
   const tbody = $("#transfersCpBody");
   const tfoot = $("#transfersCpFoot");
@@ -3706,7 +3706,7 @@ async function openTransfersDetail(companyId, companyName, { keepFilters = false
   $("#tfDetailCount").innerHTML = `—`;
   $("#tfDetailCountFoot").textContent = pendingN ? `其中待确认 ${pendingN} 笔（汇总）` : "按筛选加载明细";
   if (cp) {
-    $("#tfDetailIn").innerHTML = formatWan(cp.confirmed_inflow, { signed: true });
+    $("#tfDetailIn").innerHTML = formatWanHtml(cp.confirmed_inflow, { signed: true });
     const wan = yuanToWan(cp.confirmed_outflow);
     $("#tfDetailOut").innerHTML = wan === null
       ? "—"