Android APK: native PDF download support for boleto files

We need native PDF download support in the Base44 Android wrapper.

Current issue: In the Android APK, users can view boleto PDFs inside the app, but they cannot reliably download and save the file on the device.

What we tested on the frontend:

• window.open

• blob URL

• data URI

• <a download>

• iframe/embed

• PDF.js viewer

• share attempts

• opening signed URLs in browser

Result: Viewing works, but native file download inside the Android APK does not.

Root cause: The current Android wrapper does not expose a native JavaScript bridge for file download, such as: window.Android.downloadPdf(base64, filename)

Feature request: Please add native file download support to the Android wrapper, ideally with:

• JavaScript bridge support

• DownloadManager / MediaStore integration

• save to Downloads

• clear success/failure feedback to the user

Expected behavior: When the user taps “Boleto PDF” in the Android app, the PDF should be downloaded and saved on the device, preferably in the Downloads folder.

Why this matters: This is essential for apps that need to deliver invoices, boletos, contracts, and other PDF documents to users in a reliable mobile experience.