fix: 年份动态计算 + 首页布局优化

- 后端所有硬编码2026替换为date.today().year动态计算
- 首页移除4个快捷跳转卡片
- 首页新增时间段筛选下拉框
- 版本号更新至v1.0.0.3

templates/index.html

@@ -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">v1.0.0.2</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">v1.0.0.3</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">