feat(admin-dashboard): normalize plan share bar widths by top max

public/js/admin.js

@@ -208,7 +208,7 @@
 
             var bar = document.createElement('div');
             bar.className = 'adm-mini-rank-bar';
-            bar.style.width = Math.round(ratio * 100) + '%';
+            bar.style.width = Math.round(barRatio * 100) + '%';
 
             wrap.appendChild(bar);
 
@@ -253,11 +253,24 @@
             return;
         }
 
+        // 视觉口径：bar 宽度按 Top5 内最大值归一（更易读）；百分比仍按 total 分母计算。
+        var maxCnt = 0;
+        points.forEach(function (p) {
+            var v = Number(p && p.count ? p.count : 0);
+            if (v > maxCnt) {
+                maxCnt = v;
+            }
+        });
+        if (!maxCnt || maxCnt <= 0) {
+            maxCnt = 1;
+        }
+
         el.innerHTML = '';
 
         points.forEach(function (p, idx) {
             var cnt = Number(p && p.count ? p.count : 0);
             var ratio = total > 0 ? Math.max(0, Math.min(1, cnt / total)) : 0;
+            var barRatio = maxCnt > 0 ? Math.max(0, Math.min(1, cnt / maxCnt)) : 0;
 
             var row = document.createElement('div');
             row.className = 'adm-mini-share-row';
@@ -274,7 +287,7 @@
 
             var bar = document.createElement('div');
             bar.className = 'adm-mini-share-bar';
-            bar.style.width = Math.round(ratio * 100) + '%';
+            bar.style.width = Math.round(barRatio * 100) + '%';
 
             wrap.appendChild(bar);
 

tests/Feature/AdminDashboardPlanOrderShareMiniChartShouldNormalizeBarWidthByTopMaxTest.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Tests\Feature;
+
+use Tests\TestCase;
+
+class AdminDashboardPlanOrderShareMiniChartShouldNormalizeBarWidthByTopMaxTest extends TestCase
+{
+    public function test_dashboard_plan_order_share_mini_chart_should_normalize_bar_width_by_top_max(): void
+    {
+        $js = (string) file_get_contents(public_path('js/admin.js'));
+
+        // 护栏：占比条形图 bar 宽度应按 Top5 最大单量归一（而不是按 total 分母），避免“覆盖率低时所有 bar 很短难看”。
+        $this->assertStringContainsString('var maxCnt = 0', $js);
+        $this->assertStringContainsString('maxCnt = v', $js);
+        $this->assertStringContainsString('var barRatio =', $js);
+        $this->assertStringContainsString("bar.style.width = Math.round(barRatio * 100) + '%'", $js);
+
+        // 百分比展示仍必须按 total 分母（ratio），不能被 barRatio 替代。
+        $this->assertStringContainsString("val.textContent = formatPct(ratio, 1) + '%'", $js);
+    }
+}