I need to develop Push Notification for website and mobile app

Description

TowDispatch is a full-featured platform designed to streamline operations for car towing agencies. The system supports both web and mobile environments and enables seamless coordination between dispatch administrators and field drivers.
Tech StackWeb Frontend: React.js + Tailwind CSSBackend & Realtime DB: Supabase (PostgreSQL, Auth, Edge Functions)Mobile Application: Capacitor (for native app packaging), integrated via Android Studio for Android and planned iOS deployment Core Functionality
Admin DashboardJob Management: Create, assign, update, and delete tow jobsDriver Management: Add, edit, and monitor driver status and activitiesReporting Module: Generate operational and performance reportsNotification System: Real-time job status feedback via toast messages (web) and push notifications (mobile)
Driver AppJob Inbox: View assigned jobs with real-time updatesJob Workflow: Update job progress (e.g., en route, job complete)Profile: Manage driver-specific settings and preferences
Current Challenge: Push Notification ImplementationWith the mobile app version now fully operational through Capacitor and Android Studio, the primary challenge lies in implementing a reliable and scalable push notification system to replicate and extend the existing toast-based web notification model.
Existing Web Notification FlowNotifications are triggered via toast messages, displayed in-app for real-time user feedbackAll notification events (e.g., job assignment, completion) are stored in Supabase for traceability