Refactor Notification Handling and Improve User Engagement

- Updated the NotificationsModule to enhance notification management for user actions and events.
- Improved integration with the CheckoutRegistrationService to streamline SIM order notifications.
- Refactored CatalogCdcSubscriber to ensure timely creation of notifications for account status changes.
- Enhanced frontend components to better display notification alerts, improving user experience and accessibility.

apps/bff/prisma/migrations/20251223023617_add_notifications/migration.sql

@@ -0,0 +1,40 @@
+-- CreateEnum
+CREATE TYPE "NotificationType" AS ENUM ('ELIGIBILITY_ELIGIBLE', 'ELIGIBILITY_INELIGIBLE', 'VERIFICATION_VERIFIED', 'VERIFICATION_REJECTED', 'ORDER_APPROVED', 'ORDER_ACTIVATED', 'ORDER_FAILED', 'CANCELLATION_SCHEDULED', 'CANCELLATION_COMPLETE', 'PAYMENT_METHOD_EXPIRING', 'INVOICE_DUE', 'SYSTEM_ANNOUNCEMENT');
+
+-- CreateEnum
+CREATE TYPE "NotificationSource" AS ENUM ('SALESFORCE', 'WHMCS', 'PORTAL', 'SYSTEM');
+
+-- AlterTable
+ALTER TABLE "residence_card_submissions" ALTER COLUMN "updated_at" DROP DEFAULT;
+
+-- CreateTable
+CREATE TABLE "notifications" (
+    "id" TEXT NOT NULL,
+    "user_id" TEXT NOT NULL,
+    "type" "NotificationType" NOT NULL,
+    "title" TEXT NOT NULL,
+    "message" TEXT,
+    "action_url" TEXT,
+    "action_label" TEXT,
+    "source" "NotificationSource" NOT NULL DEFAULT 'SALESFORCE',
+    "source_id" TEXT,
+    "read" BOOLEAN NOT NULL DEFAULT false,
+    "read_at" TIMESTAMP(3),
+    "dismissed" BOOLEAN NOT NULL DEFAULT false,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "expires_at" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "notifications_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "notifications_user_id_read_dismissed_idx" ON "notifications"("user_id", "read", "dismissed");
+
+-- CreateIndex
+CREATE INDEX "notifications_user_id_created_at_idx" ON "notifications"("user_id", "created_at");
+
+-- CreateIndex
+CREATE INDEX "notifications_expires_at_idx" ON "notifications"("expires_at");
+
+-- AddForeignKey
+ALTER TABLE "notifications" ADD CONSTRAINT "notifications_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "users"("id") ON DELETE CASCADE ON UPDATE CASCADE;