feat: R27-2 R27-5 优化企微入口与 Portal 体验

client/src/components/navigation/Sidebar.tsx

@@ -2,10 +2,15 @@ import { NavLinks } from "./NavLinks";
 
 export function Sidebar() {
   return (
-    <aside className="fixed inset-y-0 z-20 hidden w-64 border-r border-zinc-200 bg-white lg:flex lg:flex-col overflow-hidden">
-      <div className="flex items-center gap-3 border-b border-zinc-200 p-6">
-        <div className="flex size-8 items-center justify-center rounded-lg bg-zinc-900 text-lg font-bold text-white">H</div>
-        <span className="font-bold tracking-tight text-zinc-900">海音达工作台</span>
+    <aside className="fixed inset-y-0 z-20 hidden w-64 overflow-hidden border-r border-zinc-200 bg-white lg:flex lg:flex-col">
+      <div className="border-b border-zinc-200 p-6">
+        <div className="flex items-center gap-3">
+          <div className="flex size-8 items-center justify-center rounded-lg bg-zinc-900 text-lg font-bold text-white">H</div>
+          <div>
+            <div className="font-bold tracking-tight text-zinc-900">海音达工作台</div>
+            <div className="text-xs text-zinc-500">企业微信入口 + OA 主平台</div>
+          </div>
+        </div>
       </div>
 
       <div className="min-h-0 flex-1 overflow-y-auto p-3">