This folder is filled by build.bat.

After a successful build it contains:

    BibleProj.exe      the app - double-click it
    _internal\         the Qt and Python runtime it needs
    data\bibles.sqlite the Bible database
    bibleproj.ini      settings, written on first run

The whole folder is portable. Copy it to the projection PC as it is; nothing
needs installing there, no Python, no runtime.

On that machine, before a service, open a command prompt in this folder and run

    BibleProj.exe --selftest

It loads the database, builds the interface, projects a verse and reports what
it found, including how many screens Windows can see - without opening a window
or touching the projector. If it prints "result: OK" the install is sound.

To update the app later, run build.bat again; this folder is rebuilt from
scratch, so don't keep anything of your own in here. Settings survive because
bibleproj.ini is written next to the exe and left alone.
