feat(pages): add drills page

src/pages/student/StudentLayout.tsx

@@ -31,7 +31,7 @@ export function StudentLayout() {
   return (
     <div className="flex flex-col min-h-screen bg-gray-50">
       {/* Top Header */}
-      <header className="bg-white shadow-sm sticky top-0 z-10">
+      {/* <header className="bg-white shadow-sm sticky top-0 z-10">
         <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
           <div className="flex justify-between items-center h-22">
             <div className="flex items-center gap-3">
@@ -53,7 +53,7 @@ export function StudentLayout() {
             </button>
           </div>
         </div>
-      </header>
+      </header> */}
 
       {/* Main Content */}
       <main className="flex-1 pb-20 overflow-y-auto">