HEL-342: 管理总览 KPI 绑定真实 dashboard 接口

去掉写死的演示金额与账期进度，改由 /api/admin/dashboard 的 totals 与 period_progress 填充；无数据走空态。

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

web/app.js

@@ -1467,6 +1467,63 @@ function updateDashAuditCard(audit) {
   applyAuditCounts(audit, { fromApi: true });
 }
 
+function formatDashWan(value) {
+  const num = Number(value);
+  if (!Number.isFinite(num)) return "0.00";
+  return Math.abs(num).toLocaleString("zh-CN", { minimumFractionDigits: 2, maximumFractionDigits: 2 });
+}
+
+function applyDashKpis(data) {
+  const totals = data?.totals || {};
+  const from = data?.from_date || "—";
+  const cutoff = data?.cutoff || "—";
+  const periodLabel = data?.period_label || "";
+  const companyCount = Number(totals.company_count) || 0;
+  const detailCount = Number(totals.detail_count) || 0;
+  const debit = formatDashWan(totals.debit_wan);
+  const credit = formatDashWan(totals.credit_wan);
+
+  const pageSub = $("#dashPageSub");
+  if (pageSub) {
+    if (!companyCount && !detailCount) {
+      pageSub.textContent = `${from} 至 ${cutoff}，暂无成员公司往来数据。导入并归集银行流水后，金额将显示在此。页面上任意数字与公司均可逐级穿透，直至银行原始流水。`;
+    } else {
+      pageSub.textContent = `${from} 至 ${cutoff}，集团 ${companyCount} 家成员公司相互往来累计发生 ${debit} 万元、${detailCount} 笔明细。页面上任意数字与公司均可逐级穿透，直至银行原始流水。`;
+    }
+  }
+  const debitVal = $("#dashDebitValue");
+  if (debitVal) debitVal.innerHTML = `${debit}<span class="unit">万元</span>`;
+  const debitFoot = $("#dashDebitFoot");
+  if (debitFoot) debitFoot.textContent = `${companyCount} 家公司合计 · 明细 ${detailCount} 笔`;
+  const creditVal = $("#dashCreditValue");
+  if (creditVal) creditVal.innerHTML = `${credit}<span class="unit">万元</span>`;
+  const creditFoot = $("#dashCreditFoot");
+  if (creditFoot) creditFoot.textContent = `${companyCount} 家公司合计 · 与借方同源互证`;
+
+  const progress = data?.period_progress || {};
+  const ym = progress.year_month || periodLabel;
+  const monthNum = ym ? Number(String(ym).slice(5, 7)) : 0;
+  const labelEl = $("#dashPeriodLabel");
+  if (labelEl) labelEl.textContent = monthNum ? `${monthNum} 月账期确认进度` : "账期确认进度";
+  const percent = Number(progress.percent) || 0;
+  const pctEl = $("#dashPeriodPercent");
+  if (pctEl) pctEl.innerHTML = `${percent}<span class="unit">%</span>`;
+  const bar = $("#dashPeriodBar");
+  if (bar) bar.style.width = `${Math.max(0, Math.min(100, percent))}%`;
+  const periodFoot = $("#dashPeriodFoot");
+  if (periodFoot) {
+    const enabled = Number(progress.enabled_count) || 0;
+    periodFoot.textContent = enabled
+      ? `${progress.done || 0} 家已完成 · ${progress.in_progress || 0} 家在途 · ${progress.unsubmitted || 0} 家未提交`
+      : "尚无已启用银行账户";
+  }
+
+  const tbPeriod = $("#topbarPeriod");
+  if (tbPeriod) tbPeriod.textContent = periodLabel ? `账期 ${periodLabel}` : "账期 —";
+  const tbCutoff = $("#topbarCutoff");
+  if (tbCutoff) tbCutoff.textContent = cutoff && cutoff !== "—" ? `统计截止 ${cutoff}` : "统计截止 —";
+}
+
 function renderDashCompanyRows(companies, selectedId) {
   const list = $("#dashCompanyRows");
   if (!list) return;
@@ -1681,11 +1738,15 @@ async function loadAdminDashboard() {
   const response = await fetch(`/api/admin/dashboard?from=${encodeURIComponent(from)}`).catch(() => null);
   if (!response?.ok) {
     $("#dashCompanyRows").innerHTML = '<div class="dash-company-empty muted">总览加载失败</div>';
+    const pageSub = $("#dashPageSub");
+    if (pageSub) pageSub.textContent = "总览加载失败，请刷新后重试。";
     return;
   }
   const data = await response.json().catch(() => null);
   if (!data || data.status !== "ok") {
     $("#dashCompanyRows").innerHTML = '<div class="dash-company-empty muted">总览加载失败</div>';
+    const pageSub = $("#dashPageSub");
+    if (pageSub) pageSub.textContent = "总览加载失败，请刷新后重试。";
     return;
   }
   state.dashCompanies = data.companies || [];
@@ -1693,6 +1754,7 @@ async function loadAdminDashboard() {
   state.dashCutoff = data.cutoff;
   state.dashPeriodMonth = data.period_month;
   updateDashAuditCard(data.audit);
+  applyDashKpis(data);
   const listSub = $("#dashListSub");
   if (listSub) {
     listSub.textContent = `${data.from_date} 至 ${data.cutoff} · 单位：万元 · 左侧选择公司，右侧查看其往来明细`;
@@ -1837,8 +1899,13 @@ function syncPendingCheckAll() {
   if (!master) return;
   const boxes = $$(".pending-check");
   const checked = boxes.filter((el) => el.checked).length;
+  master.disabled = boxes.length === 0;
   master.checked = boxes.length > 0 && checked === boxes.length;
   master.indeterminate = checked > 0 && checked < boxes.length;
+  if (boxes.length === 0) {
+    master.checked = false;
+    master.indeterminate = false;
+  }
 }
 
 async function loadAdminRemindersHistory(sourceFilter) {