feat(P15B-1,P15B-6): 完成请假V1闭环

client/src/components/navigation/NavLinks.tsx

@@ -18,6 +18,12 @@ export const NAV_ITEMS: NavItem[] = [
     icon: "request_quote",
     anyOf: ["expense.view_own", "expense.view_all"],
   },
+  {
+    to: "/leave-requests",
+    label: "请假申请",
+    icon: "event_available",
+    anyOf: ["leave.view_own", "leave.view_all"],
+  },
   {
     to: "/workflow/tasks",
     label: "待我处理",