Android v6.1.2 — Stability fixes

[2026-07-16 v6.1.2] A stability release for the Android app.

• Fixed a crash when taking a photo (Snap Food and progress photos) with camera permission turned off — the app now asks for permission instead.
• Fixed a crash when removing a food item from a meal plan with a quick double-tap.
• Fixed a rare crash during Google Drive auto-backup while the app was in use.