Port BR-95 desktop to Next.js components

br95/components/shared/BootScreen.tsx

@@ -0,0 +1,20 @@
+import React from 'react';
+
+type Props = {
+  bootActive: boolean;
+};
+
+export default function BootScreen({ bootActive }: Props) {
+  return (
+    <div className="boot-screen" id="boot" style={{ pointerEvents: bootActive ? 'auto' : 'none' }}>
+      <div className="boot-logo-container">
+        <div className="boot-logo">
+          <div className="boot-road"></div>
+        </div>
+        <div className="boot-title">BlackRoad OS</div>
+        <div className="boot-sub">BR‑95 Edition · Safe Passage Through The Chaos</div>
+        <div className="boot-loading">System Loading</div>
+      </div>
+    </div>
+  );
+}