Add mobile application section to privacy policy (#61)

Author: kchudy

src/data/privacy.mdx

@@ -62,11 +62,15 @@ We do not sell personal data but share it as follows:
 
 We implement technical and organizational measures to protect your data, including encryption and access controls.
 
-#### 9. **Changes to Privacy Policy**
+#### 9. **Mobile application**
+
+The app may request access to the device’s camera to enable core functionality, such as scanning QR codes. No camera data is stored or transmitted.
+
+#### 10. **Changes to Privacy Policy**
 
 Updates to this Privacy Policy will be posted here and take effect 24 hours after publication.
 
-#### 10. **Governing Law**
+#### 11. **Governing Law**
 
 This Privacy Policy is governed by Polish law. Any disputes will be resolved in the courts of Szczecin, Poland.