Clan-app: fix welcome screen for initially empty clan

pkgs/webview-ui/app/src/layout/layout.tsx

@@ -2,12 +2,20 @@ import { Component, createEffect, Show } from "solid-js";
 import { Header } from "./header";
 import { Sidebar } from "../Sidebar";
 import { activeURI, clanList } from "../App";
-import { RouteSectionProps } from "@solidjs/router";
+import { redirect, RouteSectionProps, useNavigate } from "@solidjs/router";
 import { Toaster } from "solid-toast";
 
 export const Layout: Component<RouteSectionProps> = (props) => {
+  const navigate = useNavigate();
   createEffect(() => {
     console.log("Layout props", props.location);
+    console.log(
+      "empty ClanList, redirect to welcome page",
+      clanList().length === 0,
+    );
+    if (clanList().length === 0) {
+      navigate("/welcome");
+    }
   });
   return (
     <div class="h-screen bg-gradient-to-b from-white to-base-100 p-4">