Ilia Denisov
f3c08e031e
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The no-repeat-words rule never fired in an online game. The move preview builds its set of already-used words from the history the client holds, and the codec upper-cases those words for display, while the evaluator decodes the candidate word to lower — so "БРА" was never found to equal "бра" and every repeat scored as an ordinary play, right up to the server refusing it. Offline was unaffected: that engine compares alphabet-index keys taken from its own journal, which carry no case at all. The tests missed it because they hand-built the played set in the form the server sends rather than deriving it the way the game screen does. They now go through playedWordsFromHistory with history records shaped as the codec produces them — upper-cased words and all — which is the path that was broken; three of the five fail without this fix.