add showboat fam and rotating data

frontend/src/routes/[fam]/+layout.server.ts

@@ -2,6 +2,7 @@ import { redirect } from '@sveltejs/kit';
 import { createPbClient } from '$lib/server/pocketbase';
 import { createServices, type ChatActor } from '$lib/server/services';
 import { ensureFamAccess } from '$lib/server/access';
+import { seedDemoCompletions } from '$lib/server/migrate';
 
 async function paydayCheck(famId: string, pbToken: string) {
 	try {
@@ -46,6 +47,11 @@ async function resolveChatIdentity(
 }
 
 export async function load(event) {
+	// Demo family: rotate 3-week completion data on every visit (idempotent).
+	if (event.params.fam === 'showboaters') {
+		seedDemoCompletions().catch(() => {});
+	}
+
 	const session = event.locals.user;
 	const role = session?.role || 'child';
 	const isParent = role === 'parent';