feat: Implement push notifications in Budget Manager PWA

- Added functionality for subscribing to push notifications in Settings.vue.
- Integrated service worker registration and notification permission requests.
- Enhanced Vite configuration for PWA with manifest and caching strategies.
- Created a script for generating PDF reports.
- Added project report markdown file detailing the PWA implementation and features.

README.md

@@ -1,7 +1,70 @@
-# Aplikacja do zarządzania finansami z powiadomieniami push
+# Budget Manager PWA
 
-- Zaprojektuj aplikację PWA umożliwiającą śledzenie wydatków i przychodów.
-- Wykorzystaj Local Storage do przechowywania danych użytkownika.
-- Zaimplementuj funkcje budżetowania, raportowania i analizy finansowej.
-- Dodaj powiadomienia push, aby informować użytkowników o ważnych wydarzeniach finansowych.
-- Wykorzystaj MongoDB do przechowywania danych.
+A Progressive Web App for managing personal finances with push notifications.
+
+## Features
+
+- Track expenses and income
+- Manage budget categories with custom colors
+- View financial reports and analytics
+- Receive push notifications for new transactions
+- Works offline with local data storage
+- Full PWA support for mobile installation
+
+## Setup Instructions
+
+### Backend
+
+1. Navigate to the backend directory:
+   ```bash
+   cd backend
+   ```
+
+2. Install dependencies:
+   ```bash
+   bun install
+   ```
+
+3. Generate VAPID keys for push notifications:
+   ```bash
+   cd scripts
+   bun run generate-vapid-keys.js
+   ```
+
+4. Copy the `.env.example` to `.env` and update with your VAPID keys:
+   ```bash
+   cp .env.example .env
+   ```
+
+5. Start the backend server:
+   ```bash
+   bun start
+   ```
+
+### Frontend
+
+1. Navigate to the frontend directory:
+   ```bash
+   cd frontend
+   ```
+
+2. Install dependencies:
+   ```bash
+   bun install
+   ```
+
+3. Start the development server:
+   ```bash
+   bun dev
+   ```
+
+## Push Notifications
+
+The app supports push notifications for the following events:
+- New transaction added
+- Budget threshold exceeded
+
+To enable push notifications:
+1. Go to the Settings page
+2. Toggle "Push Notifications" to On
+3. Grant notification permissions when prompted