fix: ConfirmModal-Zustand in Redux ausgelagert zur Stabilisierung

- Neuen confirmModalSlice erstellt für globale Steuerung des Bestätigungsdialogs
- Zustand wird nun nicht mehr durch Re-Renders oder Komponentenneuaufbau zurückgesetzt
- ConfirmModal in KueEinstellung.tsx vollständig an Redux angebunden
- Flackern und automatisches Schließen nach 10–15 Sekunden dauerhaft behoben

redux/slices/confirmModalSlice.ts

@@ -0,0 +1,29 @@
+import { createSlice, PayloadAction } from "@reduxjs/toolkit";
+
+interface ConfirmModalState {
+  open: boolean;
+}
+
+const initialState: ConfirmModalState = {
+  open: false,
+};
+
+export const confirmModalSlice = createSlice({
+  name: "confirmModal",
+  initialState,
+  reducers: {
+    openConfirmModal: (state) => {
+      state.open = true;
+    },
+    closeConfirmModal: (state) => {
+      state.open = false;
+    },
+    setConfirmModal: (state, action: PayloadAction<boolean>) => {
+      state.open = action.payload;
+    },
+  },
+});
+
+export const { openConfirmModal, closeConfirmModal, setConfirmModal } =
+  confirmModalSlice.actions;
+export default confirmModalSlice.reducer;

redux/store.ts

@@ -27,6 +27,7 @@ import analogInputsHistoryReducer from "./slices/analogInputsHistorySlice";
 import selectedAnalogInputReducer from "./slices/selectedAnalogInputSlice";
 import messagesReducer from "./slices/messagesSlice";
 import firmwareUpdateReducer from "@/redux/slices/firmwareUpdateSlice";
+import confirmModalReducer from "./slices/confirmModalSlice";
 
 const store = configureStore({
   reducer: {
@@ -56,6 +57,7 @@ const store = configureStore({
     selectedAnalogInput: selectedAnalogInputReducer,
     messages: messagesReducer,
     firmwareUpdate: firmwareUpdateReducer,
+    confirmModal: confirmModalReducer,
   },
 });