Place a Gujarati-capable TTF font here for reliable deployment, for example:

- NotoSerifGujarati-Regular.ttf
- NotoSerifGujarati-Bold.ttf
- NotoSansGujarati-Regular.ttf
- NotoSansGujarati-SemiBold.ttf
- AnekGujarati-Regular.ttf
- AnekGujarati-Medium.ttf

Set `RECEIPT_FONT_PATH` and `RECEIPT_FONT_BOLD_PATH` if you want explicit control.