feat: 平台费用Tab切换+汇总筛选对换+卡片样式统一

- 平台费用类型改为Tab按钮切换(人力成本|研发费用|奖金|平台采购|通用费用|其他)
- 平台费用计划改名为平台费用
- 项目管理和平台费用: 汇总区在上筛选区在下
- 平台费用卡片样式对齐项目管理(紧凑px-3 py-1.5)
- 视图下拉框放在Tab按钮左边
- 版本号 v1.2.0.16

static/modules/plan.js

@@ -113,7 +113,7 @@ function renderPlan() {
   const finAddBtn = `<button class="btn btn-primary btn-sm" onclick="openPlanModal()">新增财务项目</button>`;
 
   const isOverviewMode = false;
-  const planFilterTabs = `<div class="finance-tabs" style="padding:0 0 0 0;border-bottom:1px solid #e2e8f0;margin-bottom:0;display:flex;gap:4px"><button onclick="switchPlanFilter('overview')" class="finance-tab${state.planFilter==='overview'?' active':''}" style="font-size:14px;font-weight:600;padding:8px 16px;margin-right:0">经营月报</button><button onclick="switchPlanFilter('quarterlyOverview')" class="finance-tab${state.planFilter==='quarterlyOverview'?' active':''}" style="font-size:14px;font-weight:600">经营季报</button>${isOverviewMode ? '' : `<button onclick="switchPlanFilter('projects')" class="finance-tab${state.planFilter==='projects'?' active':''}" style="font-size:14px;font-weight:600">项目管理 (${pfs.length})</button><button onclick="switchPlanFilter('expense')" class="finance-tab${state.planFilter==='expense'?' active':''}" style="font-size:14px;font-weight:600">平台费用计划</button>`}</div>`;
+  const planFilterTabs = `<div class="finance-tabs" style="padding:0 0 0 0;border-bottom:1px solid #e2e8f0;margin-bottom:0;display:flex;gap:4px"><button onclick="switchPlanFilter('overview')" class="finance-tab${state.planFilter==='overview'?' active':''}" style="font-size:14px;font-weight:600;padding:8px 16px;margin-right:0">经营月报</button><button onclick="switchPlanFilter('quarterlyOverview')" class="finance-tab${state.planFilter==='quarterlyOverview'?' active':''}" style="font-size:14px;font-weight:600">经营季报</button>${isOverviewMode ? '' : `<button onclick="switchPlanFilter('projects')" class="finance-tab${state.planFilter==='projects'?' active':''}" style="font-size:14px;font-weight:600">项目管理 (${pfs.length})</button><button onclick="switchPlanFilter('expense')" class="finance-tab${state.planFilter==='expense'?' active':''}" style="font-size:14px;font-weight:600">平台费用</button>`}</div>`;
 
   document.querySelector("#plan").innerHTML = `<div class="grid gap-2">
     ${isOverviewMode ? '' : `<div class="flex items-center gap-3 px-4 py-2 rounded-lg border" style="background:linear-gradient(135deg,#fef9c3,#fde047);border-color:#eab308">
@@ -121,7 +121,8 @@ function renderPlan() {
       <span class="text-sm text-yellow-900"><strong>预算：</strong>OPC 对每一个项目确收，毛利，回款，成本，支付，现金流，按月做出规划，回头对比已发生，看预算的准确率</span>
     </div>`}
     ${planFilterTabs}
-    ${state.planFilter !== 'expense' && state.planFilter !== 'overview' && state.planFilter !== 'quarterlyOverview' ? card(`<div class="flex justify-between items-center"><div class="flex items-center gap-2">${finHeaderBase}</div>${finAddBtn}</div>`, "py-2 px-4") : ''}
+    ${state.planFilter !== 'expense' && state.planFilter !== 'overview' && state.planFilter !== 'quarterlyOverview' ? '' : (state.planFilter === 'expense' ? '' : '')}
+    ${state.planFilter !== 'expense' && state.planFilter !== 'overview' && state.planFilter !== 'quarterlyOverview' ? '' : ''}
     <div id="planModal" class="hidden fixed inset-0 z-50 flex items-center justify-center bg-black/40" onclick="closePlanModal()"><div class="bg-white rounded-2xl shadow-2xl w-full max-w-6xl mx-4 max-h-[92vh] overflow-y-auto" onclick="event.stopPropagation()"><div class="sticky top-0 z-10 bg-white/95 backdrop-blur border-b border-slate-100 px-8 py-5 flex items-center justify-between"><div><h3 class="text-xl font-bold text-slate-800" id="planModalTitle">新增项目财务</h3><p class="text-xs text-slate-400 mt-0.5">填写项目财务信息与月度预算</p></div><div class="flex items-center gap-2"><button class="btn btn-ghost btn-sm text-red-600 hidden" id="planDeleteBtn" onclick="deletePlanItem()"><i data-lucide="trash-2"></i>删除</button><button class="btn btn-ghost btn-sm rounded-full w-8 h-8 p-0" onclick="closePlanModal()"><i data-lucide="x"></i></button></div></div>
   <div class="finance-tabs">
     <button class="finance-tab active" data-tab="info" onclick="switchPlanTab('info')"><i data-lucide="info" style="width:14px;height:14px;display:inline-block;vertical-align:-2px;margin-right:4px"></i>基本信息</button>
@@ -339,6 +340,7 @@ function renderPlan() {
           ? '合同 → 毛利 → 成本 → 项目利润'
           : '合同 → 确收 → 毛利 → 成本 → 项目利润 → 回款 → 已付 → 现金流';
         return `<div class="grid ${cardGrid} gap-1.5 mb-1.5">${cards.map(([l, v, c]) => '<div class="metric-card px-3 py-1.5"><span class="text-xs text-slate-500">' + l + '</span> <strong class="text-base ' + c + '">' + v + '</strong></div>').join("")}</div>` +
+               `${isUnsigned ? '' : `<div class="mb-1.5">${card(`<div class="flex justify-between items-center"><div class="flex items-center gap-2">${finHeaderBase}</div>${finAddBtn}</div>`, "py-2 px-4")}</div>`}` +
                card(`<h3 class="text-sm font-bold text-slate-700">项目财务明细</h3><p class="text-xs text-slate-400 mb-3">${subtitle}</p><div class="overflow-x-auto"><table class="w-full text-sm">${thead}${tbody}</table></div>`, "p-4");
       };