fix: resolve biome lint and format errors

- Replace non-null assertions with fallback functions in dashboard-view
- Prefix unused onNavigateToMemories parameter with underscore
- Fix chat/index.tsx formatting

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/components/chat/index.tsx

@@ -307,8 +307,8 @@ export function ChatSidebar({
 				id: pendingThreadLoad.id,
 				messageCount: pendingThreadLoad.messages.length,
 				lastMessageId:
-					pendingThreadLoad.messages[pendingThreadLoad.messages.length - 1]?.id ??
-					null,
+					pendingThreadLoad.messages[pendingThreadLoad.messages.length - 1]
+						?.id ?? null,
 			})
 			setPendingThreadLoad(null)
 		}

apps/web/components/dashboard-view.tsx

@@ -369,7 +369,7 @@ function RecommendedPluginsCard({
 		return PLUGIN_STATIC.map((p) => ({
 			...p,
 			connected: connected[p.id] ?? false,
-			onClick: onClicks[p.id]!,
+			onClick: onClicks[p.id] ?? (() => {}),
 		}))
 	}, [hasMcp, connectedProviders, onOpenPlugins, onOpenIntegrations])
 
@@ -537,7 +537,7 @@ function PluginPromoCard({
 		return PLUGIN_STATIC.map((p) => ({
 			...p,
 			connected: connected[p.id] ?? false,
-			onClick: onClicks[p.id]!,
+			onClick: onClicks[p.id] ?? (() => {}),
 		})).filter((p) => !p.connected)
 	}, [hasMcp, connectedProviders, onOpenPlugins, onOpenIntegrations])
 
@@ -640,7 +640,7 @@ export function DashboardView({
 	onOpenSearch,
 	onOpenIntegrations,
 	onOpenPlugins,
-	onNavigateToMemories,
+	onNavigateToMemories: _onNavigateToMemories,
 	onNavigateToGraph,
 	onOpenDocument,
 	onHighlightsChat,