Refactor code structure for improved readability and maintainability

Author: stesee

.vscode/extensions.json

@@ -1,6 +1,5 @@
 {
     "recommendations": [
-        "spmeesseman.vscode-taskexplorer",
         "ms-playwright.playwright",
         "streetsidesoftware.code-spell-checker"
     ]

blog/2026-03-30-relaunch-app-as-pwa/image/belegscan-home.jpg

@@ -3,11 +3,51 @@ title: "Relaunch App 'bonreader' as PWA 'BelegScan.at'"
 date: "2026-03-30"
 ---
 
-Our application has undergone a relaunch. and we are excited to introduce the new features as a Progressive Web App (PWA). This approach ensures a smoother user experience and greater accessibility. 
+Our application has undergone a relaunch, and we are excited to introduce the new features as a Progressive Web App (PWA). This approach ensures a smoother user experience and greater accessibility. 
 
 Give it a try at [BelegScan.at](https://belegscan.at).
 
-![Preview](image/index/belegscan-home.png)
+![BelegScan Home Screen](image/belegscan-home.jpg)
 
-## New Features
-- IPhone and
+<!-- truncate -->
+
+## What is BelegScan?
+
+BelegScan reads Austrian cash register QR codes (RKSV - Registrierkassensicherheitsverordnung) and displays receipt data clearly. The web app works for free and runs directly in your browser – no app installation required.
+
+## Key Features
+
+- **Signature Validation**: Automatically verifies the cryptographic signature of RKSV QR codes to ensure receipt authenticity and integrity
+- **No Installation Required**: Works as a Progressive Web App directly in your browser
+- **Privacy-Focused**: All receipt data processing happens locally in your browser - no personal data is sent to servers
+- **Cross-Platform**: Works on iPhone, Android, and desktop browsers
+- **Free to Use**: Completely free with no hidden costs
+- **Offline Capable**: Once loaded, the PWA works even without an internet connection
+- **Scan Receipts**: Easily scan Kassabons, Kassenzettel, and Quittungen from Austrian cash registers
+- **Clear Display**: View scanned receipt data in an organized, easy-to-read format
+
+## Signature Validation
+
+BelegScan validates the cryptographic signatures embedded in Austrian cash register QR codes according to RKSV (Registrierkassensicherheitsverordnung) requirements. This validation ensures:
+
+- **Authenticity**: Confirms the receipt originates from a registered cash register
+- **Integrity**: Verifies the receipt data hasn't been tampered with
+- **Compliance**: Helps businesses and consumers verify RKSV compliance
+- **Trust**: Provides instant verification that receipts are genuine and unmodified
+
+The signature validation happens entirely in your browser, maintaining complete privacy while ensuring the security and authenticity of your scanned receipts.
+
+## Why PWA?
+
+By relaunching as a Progressive Web App, BelegScan.at offers several advantages:
+
+- **Instant Access**: No need to download from app stores
+- **Automatic Updates**: Always get the latest version
+- **Less Storage**: Uses minimal device storage compared to native apps
+- **Universal Compatibility**: Works across all modern devices and browsers
+
+## Get Started
+
+Visit [BelegScan.at](https://belegscan.at) to start scanning your Austrian cash register receipts today!
+
+For questions or feedback, contact us at [Codeuctivity@gmail.com](mailto:Codeuctivity@gmail.com).