adding welcome screen

ui/src/components/news/NewsModal.jsx

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2026 by Christian Kellner.
+ * Licensed under Apache-2.0 with Commons Clause and Attribution/Naming Clause
+ */
+
+import { UserGuide } from '@douyinfe/semi-ui-19';
+import { useScreenWidth } from '../../hooks/screenWidth';
+import heart from '../../assets/heart.png';
+import newsConfig from '../../assets/news/news.json';
+import { useActions, useSelector } from '../../services/state/store';
+
+import './NewsModal.less';
+
+const NewsModal = () => {
+  const screenWidth = useScreenWidth();
+  const newsHash = useSelector((state) => state.userSettings.settings.news_hash);
+  const userSettingsLoaded = useSelector((state) => state.userSettings.loaded);
+  const pois = useSelector((state) => state.tracking.pois);
+  const actions = useActions();
+
+  if (newsConfig == null || newsConfig.length === 0 || screenWidth <= 768) {
+    return null;
+  }
+
+  const steps = newsConfig.content.map((item) => ({
+    title: (
+      <div style={{ display: 'flex', alignItems: 'center' }}>
+        <img src={heart} width="30" alt="Fredy Logo" style={{ marginRight: '10px' }} />
+        <b>{item.title}</b>
+      </div>
+    ),
+    description: (
+      <div style={{ textAlign: 'left' }}>
+        {item.image && (
+          <img
+            src={`/ui/src/assets/news/${item.image}`}
+            alt={item.title}
+            style={{ width: '100%', marginBottom: 10, borderRadius: 4 }}
+          />
+        )}
+        <p dangerouslySetInnerHTML={{ __html: item.text }} />
+      </div>
+    ),
+  }));
+
+  const handleClose = (poi) => {
+    actions.userSettings.setNewsHash(newsConfig.key);
+    if (poi) {
+      actions.tracking.trackPoi(poi);
+    }
+  };
+
+  return (
+    <UserGuide
+      mode="modal"
+      mask={true}
+      steps={steps}
+      visible={userSettingsLoaded && newsHash !== newsConfig.key}
+      onFinish={() => handleClose(pois.WELCOME_FINISHED)}
+      onSkip={() => handleClose(pois.WELCOME_SKIPPED)}
+      modalProps={{
+        width: '10rem',
+      }}
+    />
+  );
+};
+
+export default NewsModal;

ui/src/components/news/NewsModal.less

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+.semi-userGuide-modal-body-title {
+  width: 100%;
+}