MTG farm volunteer client v20

Superseded by client-v21, which adds the GPLv3 LICENSE to the zip and a NOTICE.txt naming it; the client plays the same. This asset stays downloadable, and the digest below is still its own.

One-zip Windows volunteer client for the MTG sim farm. Unzip, double-click run-client.bat, enter the farm URL and your runner credential on the first-run page, click Add, pick your work, and go.

Fixed in v20: a stopped worker starts from its own row. After Stop All -- or any restart of the client -- your workers are still on the table, but their start buttons were greyed out and the only way to get going again was to Add a worker you did not want. Now pressing start on a row starts the runner for that row alone, and Start All does it for every stopped one.

From v19: a candidate's own named derived card order. From v17: the 2.0.14+139b268b780 engine row. From v16: workers persist -- add, start, stop and delete are separate, and rows and their game counts survive a restart. From v12: the client updates itself.

Headless: farmrunner.py --mode backfill --decks REF[,REF...] [--scope within].

Ships Windows embeddable Python 3.12.10; the Forge engine (~205 MB) is downloaded on demand.

sha256(mtg-farm-client-v20.zip) = 2124020002389fdfbd375fab76e8bad59bb017dc6054be79334654c1754b8b02