统计卡片统一为 metric-card 样式 + 增加图标

- 经营管理/重点工作台账卡片改用 .metric-card 类（与首页一致）
- 卡片增加 lucide 图标（签约/金额/任务/状态等）
- 布局：左对齐、text-2xl、图标+标签

static/modules/projects.js

@@ -197,13 +197,13 @@ function renderProjects() {
   document.querySelector("#projects").innerHTML = /*html*/`
     <div class="grid grid-cols-5 gap-3 mb-4">
       ${[
-        ["项目总数", items.length],
-        ["任务总数", taskStats.total],
-        ["进行中", taskStats.ongoing],
-        ["已结束", taskStats.done],
-        ["未开始", taskStats.pending],
-      ].map(([label, value]) => `
-        <div class="bg-white rounded-lg border border-slate-200 p-3 text-center"><p class="text-xs text-slate-500">${label}</p><p class="text-xl font-bold text-slate-800">${value}</p></div>
+        ["项目总数", items.length, "folder"],
+        ["任务总数", taskStats.total, "list-checks"],
+        ["进行中", taskStats.ongoing, "play-circle"],
+        ["已结束", taskStats.done, "check-circle"],
+        ["未开始", taskStats.pending, "circle"],
+      ].map(([label, value, icon]) => `
+        <div class="metric-card"><span class="flex items-center gap-2 text-xs text-slate-500"><i data-lucide="${icon}" style="width:14px;height:14px"></i>${label}</span><strong class="mt-2 block text-2xl">${value}</strong></div>
       `).join("")}
     </div>
     <div class="flex justify-between items-center mb-3">