feat: 模板适配层、易班能力与全局状态

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/utils/tailwind.ts

@@ -1,10 +1 @@
-import { twMerge } from "tailwind-merge";
-
-/**
- * 合并 Tailwind CSS 类名，自动处理冲突
- * @param classes - 要合并的类名
- * @returns 合并后的类名字符串
- */
-export function cn(...classes: (string | undefined | null | false)[]): string {
-	return twMerge(classes.filter(Boolean).join(" "));
-}
+export { cn } from "@/lib/cn";