Feature: Plugin UI, event hooks, DB notifications, web push, webhook retry, games pages, rate limiting, tests

- Plugin admin UI: enable/disable per plugin with config forms
- Event hooks system: HookManager with on/off/emit for plugin events
- Database notifications: persistent via WebsiteNotification table + Redis pub/sub
- Notification preferences: per-user settings with API endpoints
- Web Push API: browser push notification subscription
- Webhook retry: 3 attempts with exponential backoff (1s/3s/9s) + delivery logs
- Webhook test button + paginated delivery log viewer
- Games: rank/challenge/reward admin pages
- Games: public frontend leaderboard
- Rate limiting: search API (30/min), notification stream dedup
- Unit tests: 28 new tests (registry, notifications, webhooks)
- Prisma migration 0017: website_notifications, website_notification_preferences, website_webhook_logs

src/lib/admin-nav.ts

@@ -271,6 +271,7 @@ export const ADMIN_HUBS: AdminHubDefinition[] = [
 			"/admin/email-templates",
 			"/admin/housekeeping",
 			"/admin/webhooks",
+			"/admin/plugins",
 		],
 		tabs: [
 			{ href: "/admin/settings", labelKey: "cms" },
@@ -281,6 +282,7 @@ export const ADMIN_HUBS: AdminHubDefinition[] = [
 			{ href: "/admin/email-templates", labelKey: "email" },
 			{ href: "/admin/housekeeping", labelKey: "housekeeping" },
 			{ href: "/admin/webhooks", labelKey: "webhooks" },
+			{ href: "/admin/plugins", labelKey: "plugins" },
 		],
 	},
 	{