v1.2.2

Added

• Import multiple CSV files at once — select several files and they're
  merged in a single import.
• 3D map keeps loading tiles while "Center on me" follows you — only while
  the map is on-screen and the app is in the foreground, to save data.
• Auto-reconnect after Bluetooth returns (for example after leaving
  airplane mode).

Changed

• Android 15 support with true edge-to-edge — the dark border around the UI
  is gone; content runs to the screen edges and stays scrollable to the very top.
• Android app package renamed to cz.kyblsoft.meshcore.signaltester. It
  installs as a new app — the previous build is not replaced.

Fixed

• "Connected but no packets" after airplane mode — Bluetooth turning off is
  now detected as a disconnect instead of leaving the app stuck "connected".
• Tables no longer go blank after long runs — Seen Repeaters and Received
  Packets are restored from disk once old data ages out of memory.
• 3D map repeater icons are now correctly hidden behind signal balls in front of
  them, plus various other UI and chart fixes and polish.

Internal

• The usb-serial-for-android library is vendored and built from source (no
  JitPack); the build is reproducible with pinned tooling and dependency
  checksum verification, and a CI workflow builds and lints the app on every
  change.