chore(frontend): remove unused starter files

src/components/AppLayout.tsx

@@ -1,9 +0,0 @@
-import React from "react"
-
-export function AppLayout({ children }: { children: React.ReactNode }) {
-  return (
-    <div className="min-h-screen flex flex-col bg-white dark:bg-slate-950 text-slate-900 dark:text-slate-50 transition-colors">
-      {children}
-    </div>
-  )
-}

src/components/ThemeToggle.tsx

@@ -1,17 +0,0 @@
-import { Moon, Sun } from "lucide-react"
-import { useTheme } from "./ThemeProvider"
-
-export function ThemeToggle() {
-  const { theme, setTheme } = useTheme()
-
-  return (
-    <button
-      onClick={() => setTheme(theme === "light" ? "dark" : "light")}
-      className="relative inline-flex h-10 w-10 items-center justify-center rounded-md border border-slate-200 bg-white transition-colors hover:bg-slate-100 dark:border-slate-800 dark:bg-slate-950 dark:hover:bg-slate-800"
-    >
-      <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all text-slate-900 dark:-rotate-90 dark:scale-0" />
-      <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all text-slate-50 dark:rotate-0 dark:scale-100" />
-      <span className="sr-only">Toggle theme</span>
-    </button>
-  )
-}