LICENSE: verbatim copy of android-app-template's (official SPDX text,
not retyped) — GPL-3.0 as previously decided.
Update checker: check_latest_release()/download_and_install()/
MessagePopup ported from the template, wired to a new "Check for
Updates" button next to Settings. Requires certifi added to
p4a-recipes/kivy's python_depends (HTTPS on Android needs an explicit
CA bundle) and INTERNET/REQUEST_INSTALL_PACKAGES added to
buildozer.spec. FORGEJO_TOKEN at the top of main.py ships blank —
update checking is inert until it's set to a repo-scoped read-only
token. download_and_install() is the standard p4a pattern but not yet
verified on real hardware, same caveat as the template it came from.
Dropped the previously-agreed config.json split (event list vs. data
path) — decided it's not needed after all.
