refactor: 首页→部门，移除业务概览表和4图表(已迁移到总览tab)

- 侧边栏首页→部门，图标改为trending-up
- 移除部门页业务(项目)财务概览表
- 移除4张图表(月度签约/确收毛利/回款已付/项目利润)
- 保留回款提醒+部门经营+部门现金流+近期动态
- 版本号 v1.0.0.14

templates/index.html

@@ -45,9 +45,9 @@
         <div class="w-8 h-px bg-slate-700 my-2"></div>
         <!-- 导航 Tab 图标 -->
         <div class="flex flex-col items-center gap-1 w-14" id="sidebarTabs">
-          <div class="sidebar-tab active" data-tab="home" onclick="switchTab('home')" title="首页">
-            <i data-lucide="home" style="width:20px;height:20px"></i>
-            <span class="text-[10px] mt-1">首页</span>
+          <div class="sidebar-tab active" data-tab="home" onclick="switchTab('home')" title="部门">
+            <i data-lucide="trending-up" style="width:20px;height:20px"></i>
+            <span class="text-[10px] mt-1">部门</span>
           </div>
           <div class="sidebar-tab" data-tab="finance" onclick="switchTab('finance')" title="业务">
             <i data-lucide="folder-open-dot" style="width:20px;height:20px"></i>
@@ -76,7 +76,7 @@
     <header class="topbar border-b border-slate-200 bg-white px-8 py-5">
       <div class="flex items-center gap-3 w-full">
         <div class="flex-1">
-          <p class="eyebrow text-xs font-semibold uppercase tracking-[0.18em] text-blue-700">OPC Manager <span class="ml-2 text-xs font-normal text-slate-400 tracking-normal">v1.0.0.13</span></p>
+          <p class="eyebrow text-xs font-semibold uppercase tracking-[0.18em] text-blue-700">OPC Manager <span class="ml-2 text-xs font-normal text-slate-400 tracking-normal">v1.0.0.14</span></p>
           <div class="flex items-center gap-4 mt-1">
             <h1 class="text-2xl font-semibold" id="workspaceTitle">科普 OPC 工作台</h1>
             <div class="hidden sm:flex items-center gap-1.5 bg-gradient-to-r from-blue-50 to-indigo-50 border border-blue-100 rounded-full px-4 py-1.5">