ChessEngine.makeMove() now normalizes SAN notation before passing to
chesslib, fixing games against jester.nyo.dev and other clients that
use different notation:
- Castling: 0-0 → O-O, 0-0-0 → O-O-O (zeros to letters)
- Annotations: strips !, ?, !!, ??, !?, ?! suffixes
Previously, chesslib rejected 0-0/0-0-0 causing ChessStateReconstructor
to mark games as desynced and skip remaining moves. Games appeared
permanently stuck, even after app restart.
Also fixes discoverUserGames() silently dropping games classified as
spectator — now adds them to spectatingGames instead.
23 new interop tests covering SAN variants, reconstruction, spectator
detection, and missing start event handling.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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