add platform demo fam

frontend/src/routes/admin/+page.server.ts

@@ -89,12 +89,15 @@ export const load: PageServerLoad = async (event) => {
 			pbAdmin.getList('bonus_templates', 'global = true')
 		]);
 
+		const platformFlags = await getPlatformFlags();
+
 		return {
 			authenticated: true,
 			fams: famsWithStats,
 			codes: codeList,
 			choreTemplates: choreTemplates as any[],
 			bonusTemplates: bonusTemplates as any[],
+			platformFlags,
 			totalFams: fams.length,
 			totalMembers: famsWithStats.reduce((s, f) => s + f.memberCount, 0),
 			totalRewards: famsWithStats.reduce((s, f) => s + f.totalRewards, 0),
@@ -121,6 +124,7 @@ export const load: PageServerLoad = async (event) => {
 			codeCount: 0,
 			choreTemplates: [],
 			bonusTemplates: [],
+			platformFlags: {},
 			loadError: e instanceof Error ? e.message : 'Failed to load platform data'
 		};
 	}

frontend/src/routes/admin/+page.svelte

@@ -188,6 +188,20 @@
 							</button>
 						</form>
 					</div>
+					<div class="flag-row">
+						<span class="flag-name">demo</span>
+						<span class="flag-desc">Showboaters demo family with sample data for prospectus viewers</span>
+						<form method="POST" action="?/togglePlatformFlag" use:enhance>
+							<input type="hidden" name="flag" value="demo" />
+							<button
+								type="submit"
+								class="toggle-btn"
+								class:active={page.data.platformFlags?.demo}
+							>
+								{page.data.platformFlags?.demo ? 'ON' : 'OFF'}
+							</button>
+						</form>
+					</div>
 					<div class="flag-row">
 						<span class="flag-name">rewardsTargets</span>
 						<span class="flag-desc">Multi-target reward rules (Competition / Collaboration)</span>