feat: streamline dashboard actions by removing inline add-entry form and manual refresh

src/App.js

@@ -28,6 +28,7 @@ function App() {
   const [dirtyDialogMessage, setDirtyDialogMessage] = useState('');
   const [pendingNavigation, setPendingNavigation] = useState(null);
   const [dirtyDialogSaving, setDirtyDialogSaving] = useState(false);
+  const [confirmDialog, setConfirmDialog] = useState({ open: false });
 
   const weekdays = ['Montag', 'Dienstag', 'Mittwoch', 'Donnerstag', 'Freitag', 'Samstag', 'Sonntag'];
   const delay = useCallback((ms) => new Promise((resolve) => setTimeout(resolve, ms)), []);
@@ -543,6 +544,31 @@ function App() {
     setPendingNavigation(null);
   }, []);
 
+  const askConfirmation = useCallback(
+    (options = {}) =>
+      new Promise((resolve) => {
+        setConfirmDialog({
+          open: true,
+          title: options.title || 'Bitte bestätigen',
+          message: options.message || 'Bist du sicher?',
+          confirmLabel: options.confirmLabel || 'Ja',
+          cancelLabel: options.cancelLabel || 'Abbrechen',
+          confirmTone: options.confirmTone || 'primary',
+          resolve
+        });
+      }),
+    []
+  );
+
+  const handleConfirmDialog = useCallback((result) => {
+    setConfirmDialog((prev) => {
+      if (prev?.resolve) {
+        prev.resolve(result);
+      }
+      return { open: false };
+    });
+  }, []);
+
   useEffect(() => {
     let ticker;
     let cancelled = false;
@@ -651,18 +677,30 @@ function App() {
     }
   };
 
-  const deleteEntry = (entryId) => {
+  const deleteEntry = async (entryId) => {
+    const confirmed = await askConfirmation({
+      title: 'Eintrag löschen',
+      message: 'Soll dieser Eintrag dauerhaft gelöscht werden?',
+      confirmLabel: 'Löschen',
+      confirmTone: 'danger'
+    });
+    if (!confirmed) {
+      return;
+    }
     setIsDirty(true);
-    if (window.confirm('Soll dieser Eintrag dauerhaft gelöscht werden?')) {
     const updatedConfig = config.filter((item) => item.id !== entryId);
     setConfig(updatedConfig);
     setStatus('Eintrag gelöscht!');
     setTimeout(() => setStatus(''), 3000);
-    }
   };
 
   const hideEntry = async (entryId) => {
-    if (!window.confirm('Soll dieser Betrieb ausgeblendet werden?')) {
+    const confirmed = await askConfirmation({
+      title: 'Betrieb ausblenden',
+      message: 'Soll dieser Betrieb ausgeblendet werden?',
+      confirmLabel: 'Ausblenden'
+    });
+    if (!confirmed) {
       return;
     }
     setIsDirty(true);
@@ -749,9 +787,15 @@ function App() {
     if (existing && !existing.hidden) {
       return;
     }
-    if (!window.confirm(`Soll der Betrieb "${store.name}" zur Liste hinzugefügt werden?`)) {
+    const confirmed = await askConfirmation({
+      title: 'Betrieb hinzufügen',
+      message: `Soll der Betrieb "${store.name}" zur Liste hinzugefügt werden?`,
+      confirmLabel: 'Hinzufügen'
+    });
+    if (!confirmed) {
       return;
     }
+    setIsDirty(true);
     const message = existing ? 'Betrieb wieder eingeblendet.' : 'Betrieb zur Liste hinzugefügt.';
     setIsDirty(true);
     await persistConfigUpdate(
@@ -1409,6 +1453,16 @@ function App() {
           onCancel={handleDirtyCancel}
           saving={dirtyDialogSaving}
         />
+        <ConfirmationDialog
+          open={!!confirmDialog.open}
+          title={confirmDialog.title}
+          message={confirmDialog.message}
+          confirmLabel={confirmDialog.confirmLabel}
+          cancelLabel={confirmDialog.cancelLabel}
+          confirmTone={confirmDialog.confirmTone}
+          onConfirm={() => handleConfirmDialog(true)}
+          onCancel={() => handleConfirmDialog(false)}
+        />
       </>
     </Router>
   );
@@ -1508,6 +1562,38 @@ function DirtyNavigationDialog({ open, message, onSave, onDiscard, onCancel, sav
   );
 }
 
+function ConfirmationDialog({ open, title, message, confirmLabel, cancelLabel, confirmTone = 'primary', onConfirm, onCancel }) {
+  if (!open) {
+    return null;
+  }
+  const confirmClasses =
+    confirmTone === 'danger'
+      ? 'bg-red-600 hover:bg-red-700 focus:ring-red-500'
+      : 'bg-blue-600 hover:bg-blue-700 focus:ring-blue-500';
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-slate-900/60 px-4">
+      <div className="bg-white rounded-lg shadow-2xl max-w-md w-full p-6">
+        <h3 className="text-lg font-semibold text-gray-800 mb-2">{title || 'Bitte bestätigen'}</h3>
+        <p className="text-sm text-gray-600 mb-4">{message || 'Bist du sicher?'}</p>
+        <div className="flex flex-col gap-2 sm:flex-row sm:justify-end">
+          <button
+            onClick={onCancel}
+            className="bg-gray-100 hover:bg-gray-200 text-gray-700 px-4 py-2 rounded focus:outline-none focus:ring-2 focus:ring-gray-300"
+          >
+            {cancelLabel || 'Abbrechen'}
+          </button>
+          <button
+            onClick={onConfirm}
+            className={`${confirmClasses} text-white px-4 py-2 rounded focus:outline-none focus:ring-2`}
+          >
+            {confirmLabel || 'Ja'}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
+
 function formatEta(seconds) {
   if (seconds == null || seconds === Infinity) {
     return null;