feat: Meldung für Events darstellen (Kalibrierung, TDR ud Schleifenmessung)

components/common/GlobalActivityOverlay.tsx

@@ -0,0 +1,26 @@
+"use client";
+import React from "react";
+import { useAppSelector } from "@/redux/store";
+
+export default function GlobalActivityOverlay() {
+  const anyLoop = useAppSelector((s) => s.deviceEvents.anyLoopActive);
+  const anyTdr = useAppSelector((s) => s.deviceEvents.anyTdrActive);
+  const anyAlign = useAppSelector((s) => s.deviceEvents.anyAlignmentActive);
+
+  const active = anyLoop || anyTdr || anyAlign;
+  if (!active) return null;
+
+  const messages: string[] = [];
+  if (anyLoop) messages.push("Schleifenmessung läuft…");
+  if (anyTdr) messages.push("TDR-Messung läuft…");
+  if (anyAlign) messages.push("Abgleich läuft…");
+
+  return (
+    <div className="fixed inset-0 z-[2000] flex items-center justify-center bg-white/70 backdrop-blur-sm">
+      <div className="p-4 rounded-md shadow bg-white border border-gray-200">
+        <div className="font-semibold mb-2">Bitte warten…</div>
+        <div className="text-sm text-gray-700">{messages.join(" · ")}</div>
+      </div>
+    </div>
+  );
+}