fix(ui): [UI7-2] 统一全局 Design Tokens，移除冗余字体，修复异常色值引用

client/src/components/ui/dialog.tsx

@@ -30,7 +30,7 @@ export const DialogContent = React.forwardRef<
     <DialogPrimitive.Content
       ref={ref}
       className={cn(
-        "fixed left-1/2 top-1/2 z-50 w-[92vw] max-w-lg -translate-x-1/2 -translate-y-1/2 rounded-xl border border-slate-200 bg-white p-6 shadow-lg focus-visible:outline-none",
+        "fixed left-1/2 top-1/2 z-50 w-[92vw] max-w-lg -tranzinc-x-1/2 -tranzinc-y-1/2 rounded-xl border border-zinc-200 bg-white p-6 shadow-lg focus-visible:outline-none",
         className,
       )}
       {...props}
@@ -54,7 +54,7 @@ export const DialogTitle = React.forwardRef<
 >(({ className, ...props }, ref) => (
   <DialogPrimitive.Title
     ref={ref}
-    className={cn("text-lg font-semibold text-slate-900", className)}
+    className={cn("text-lg font-semibold text-zinc-900", className)}
     {...props}
   />
 ));
@@ -67,7 +67,7 @@ export const DialogDescription = React.forwardRef<
 >(({ className, ...props }, ref) => (
   <DialogPrimitive.Description
     ref={ref}
-    className={cn("text-sm text-slate-600", className)}
+    className={cn("text-sm text-zinc-600", className)}
     {...props}
   />
 ));