Implement Tuner v1 — Go backend, React frontend, Docker setup

- Go backend: REST API, M3U parser, FFmpeg/MediaMTX process manager
- React/Vite frontend: HLS player, admin panel, channel browser (dark theme)
- MediaMTX config for RTMP ingest + HLS output
- Multi-stage Dockerfile (Go + Bun + Alpine runtime)
- docker-compose.yml for single-container deployment
- Sample M3U playlist with test streams

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/components/StatusBar.tsx

@@ -0,0 +1,35 @@
+import type { StreamStatus } from "../types";
+
+interface Props {
+  status: StreamStatus | null;
+}
+
+export default function StatusBar({ status }: Props) {
+  if (!status) {
+    return (
+      <div className="status-bar">
+        <span className="status-dot offline" />
+        <span className="status-text">Connecting...</span>
+      </div>
+    );
+  }
+
+  return (
+    <div className="status-bar">
+      <span className={`status-dot ${status.live ? "live" : "offline"}`} />
+      <span className="status-text">
+        {status.live ? "LIVE" : "Offline"}
+      </span>
+      <span className="status-separator">|</span>
+      <span className="status-source">
+        Source: {status.source === "obs" ? "OBS" : "IPTV"}
+      </span>
+      {status.source === "iptv" && status.channelName && (
+        <>
+          <span className="status-separator">|</span>
+          <span className="status-channel">{status.channelName}</span>
+        </>
+      )}
+    </div>
+  );
+}