Big PGN imports crash LiGround #296
Description
Description
When trying to import big PGN files, for example Abdussatorov's matches.
Likely Cause
Every game is parsed immediately on the UI thread via ffish.readGamePGN; large/messy PGNs (bad SAN, missing Variant/FEN) throw “invalid sanMove” and heavy synchronous parsing can freeze/crash. Currently there is a 30-game-cap in place.
Possible Fixes
move parsing to a worker or parse in small chunks; lazy-parse (only when a game is opened); validate Variant/FEN and skip/flag bad games instead of dying; keep/import cap configurable with clear error counts.