A --seconds run (benches, menu shots, input scripts) reads the total so the Game tab shows it, but starts no counting
thread. The file is now read once at start instead of on the thread. A playtime.txt with a UTF-8 byte order mark reads
as valid, and a damaged one is kept whole as playtime.txt.bad instead of its first 63 bytes. --probe-playtime checks the
parser, a missing, valid and damaged file, the 30 s save and the 2 s cap of one tick.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A host thread adds each second in which the window has the focus and the game presents frames, keeps the total in
<profile>/playtime.txt (every 30 s and at exit) and the Game tab of the settings menu shows it with this run's share.
Texts in English, Russian, Brazilian Portuguese and Simplified Chinese. Closes#720.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
