fix: recover tracks after reinstall via MediaScanner; add version to startup log

Android clears OWNER_PACKAGE_NAME for all MediaStore entries when an app is
uninstalled. Files survive on disk in Documents/Nav/ but the ownership query
returns 0 rows after reinstall. Fix: if the first load finds nothing, call
MediaScannerConnection.scanFile() on Documents/Nav/. Because our app triggers
the scan, the MediaScanner re-registers each file with our package as owner,
restoring the query results on the immediate retry.

Also log BuildConfig.VERSION_NAME + VERSION_CODE in the startup message so
the build is identifiable directly from the in-app debug log.

https://claude.ai/code/session_01DNjbYxiC1cco83dArNGW3G

0 files changed, 0 insertions, 0 deletions