perf: 优化数据库查询和前端代码质量

- 添加 records 表常用字段索引提升查询性能
- 合并月度/老板/陪玩记录查询减少数据库往返
- 提取重复的横向柱状图渲染逻辑为通用函数
- 移除调试用的 console.log 语句

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

public/js/stats.js

@@ -265,24 +265,36 @@ async function loadBossRankingPreview() {
   } catch (e) { console.error(e); }
 }
 
-function renderBossRankingPreview(rows) {
-  const container = document.getElementById('rankingPreviewList');
+// 渲染横向柱状图排行榜的通用函数
+function renderHBarRanking(rows, { containerId, getValue, getLabel, onClick, formatValue }) {
+  const container = document.getElementById(containerId);
   if (!rows || rows.length === 0) {
     container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
     return;
   }
-  const max = Math.max(...rows.map(r => r.total_income), 1);
+  const max = Math.max(...rows.map(r => getValue(r)), 1);
   container.innerHTML = rows.map((r, i) => {
-    const pct = Math.max((r.total_income / max) * 100, 2);
-    return `<div class="hbar-row" onclick="openBossDetail('${r.boss.replace(/'/g, "\\'")}', 'homePage')">
+    const pct = Math.max((getValue(r) / max) * 100, 2);
+    const label = getLabel(r).replace(/'/g, "\\'");
+    const value = formatValue ? formatValue(getValue(r)) : (getValue(r).toFixed ? getValue(r).toFixed(2) : getValue(r));
+    return `<div class="hbar-row" onclick="${onClick}(${JSON.stringify(label).replace(/"/g, '&quot;')}, 'homePage')">
       <div class="hbar-index ${i < 3 ? 'top' : ''}">${i + 1}</div>
-      <div class="hbar-label" title="${r.boss}">${r.boss}</div>
+      <div class="hbar-label" title="${label}">${label}</div>
       <div class="hbar-track"><div class="hbar-fill" style="width:${pct}%"></div></div>
-      <div class="hbar-value">${r.total_income.toFixed(2)}</div>
+      <div class="hbar-value">${value}</div>
     </div>`;
   }).join('');
 }
 
+function renderBossRankingPreview(rows) {
+  renderHBarRanking(rows, {
+    containerId: 'rankingPreviewList',
+    getValue: r => r.total_income,
+    getLabel: r => r.boss,
+    onClick: 'openBossDetail'
+  });
+}
+
 let currentBossName = '';
 let bossDetailFrom = 'homePage';
 let bossDetailYear = 0;
@@ -498,21 +510,13 @@ async function loadPartnerRankingPreview() {
 }
 
 function renderPartnerRankingPreview(rows) {
-  const container = document.getElementById('partnerRankingPreviewList');
-  if (!rows || rows.length === 0) {
-    container.innerHTML = '<div class="ranking-empty">暂无数据</div>';
-    return;
-  }
-  const max = Math.max(...rows.map(r => r.dispatch_count), 1);
-  container.innerHTML = rows.map((r, i) => {
-    const pct = Math.max((r.dispatch_count / max) * 100, 2);
-    return `<div class="hbar-row" onclick="openPartnerDetail('${r.partner.replace(/'/g, "\\'")}', 'homePage')">
-      <div class="hbar-index ${i < 3 ? 'top' : ''}">${i + 1}</div>
-      <div class="hbar-label" title="${r.partner}">${r.partner}</div>
-      <div class="hbar-track"><div class="hbar-fill" style="width:${pct}%"></div></div>
-      <div class="hbar-value">${r.dispatch_count}单</div>
-    </div>`;
-  }).join('');
+  renderHBarRanking(rows, {
+    containerId: 'partnerRankingPreviewList',
+    getValue: r => r.dispatch_count,
+    getLabel: r => r.partner,
+    onClick: 'openPartnerDetail',
+    formatValue: v => v + '单'
+  });
 }
 
 function openPartnerRankingPage() {
@@ -537,20 +541,15 @@ async function loadPartnerRankingDetail() {
     params.push('endDate=' + formatLocalDate(d));
   }
   if (params.length) url += '?' + params.join('&');
-  console.log('partner-ranking url:', url);
   try {
     const res = await fetch(url, { headers: headers() });
-    console.log('partner-ranking res.ok:', res.ok);
     if (!res.ok) return;
     const data = await res.json();
-    console.log('partner-ranking data:', data);
     const rows = data.rows || [];
-    console.log('rows:', rows);
     const summary = data.summary || { total_partner_income: 0, total_rebate_income: 0, total_milkTea_income: 0 };
 
     // 计算派单总数（从列表）
     const totalDispatch = rows.reduce((sum, r) => sum + (r.dispatch_count || 0), 0);
-    console.log('totalDispatch:', totalDispatch);
 
     // 更新统计卡片
     document.getElementById('partnerTotalDispatchCount').textContent = totalDispatch;