Port BR-95 desktop to Next.js components

br95/components/windows/MinerWindow.tsx

@@ -0,0 +1,33 @@
+import React from 'react';
+import WindowFrame from '../shared/WindowFrame';
+import { MinerStats, WindowState } from '../../hooks/useWindowManager';
+
+type Props = {
+  state: WindowState;
+  stats: MinerStats;
+  onClose: (id: string) => void;
+  onMinimize: (id: string) => void;
+  onMaximize: (id: string) => void;
+  onDragStart: (id: string, event: React.MouseEvent) => void;
+  onFocus: (id: string) => void;
+};
+
+export default function MinerWindow({ state, stats, ...handlers }: Props) {
+  return (
+    <WindowFrame id="miner" title="RoadCoin Miner" icon="⛏️" state={state} {...handlers}>
+      <div className="window-inner">
+        <div className="content-header">
+          <h2>Mining Active</h2>
+          <p>Contributing work to RoadChain network</p>
+        </div>
+        <div className="content-body">
+          <div className="card">
+            <div className="stat-row"><span className="stat-label">Hashrate</span><span className="stat-value">{stats.hashRate}</span></div>
+            <div className="stat-row"><span className="stat-label">Accepted Shares</span><span className="stat-value">{stats.sharesAccepted.toLocaleString()}</span></div>
+            <div className="stat-row"><span className="stat-label">Pool</span><span className="stat-value">{stats.poolName}</span></div>
+          </div>
+        </div>
+      </div>
+    </WindowFrame>
+  );
+}