feat: integrate sonner for toast notifications and enhance UI feedback

Added the sonner library for toast notifications across various components, improving user feedback for actions such as saving settings, syncing rules, and handling errors. Updated the layout to include a Toaster component for consistent notification display. Refactored alert messages in the backups, gre, and filters pages to utilize the new notification system, enhancing overall user experience.

backend/src/index.ts

@@ -18,6 +18,7 @@ import schedulerRoutes from "./routes/scheduler.js"
 import sidebarCountsRoutes from "./routes/sidebar-counts.js"
 import alertsRoutes from "./routes/alerts.js"
 import backupsRoutes from "./routes/backups.js"
+import eventsRoutes from "./routes/events.js"
 import { refreshScheduler, stopScheduler } from "./services/scheduler.js"
 
 // ── app factory ────────────────────────────────────────────────────────────────
@@ -62,6 +63,7 @@ await app.register(schedulerRoutes, { prefix: "/api" })
 await app.register(sidebarCountsRoutes, { prefix: "/api" })
 await app.register(alertsRoutes, { prefix: "/api" })
 await app.register(backupsRoutes, { prefix: "/api" })
+await app.register(eventsRoutes, { prefix: "/api" })
 
 refreshScheduler()
 app.addHook("onClose", async () => {