Boss Rework Update Hotfix

Boss effects no longer persist into normal stages after the boss is beaten.

Boss effects can no longer stack - only one challenge active at a time.

Split Decision: destroyed/broken tiles count as cleared, so the stage can't become unfinishable.

Tunnel Vision: destroyed tiles leave a playable gap, flagged tiles count toward your path, and walls never seal off the last safe tiles.

Shifting Locks: locks never grab the last safe tiles you need to finish, and lock count shrinks at the end of the stage.

Starting a boss before the board finished spawning no longer breaks the challenge.

Recently fought bosses are remembered across save/quit - no instant boss repeats after continuing.

Boss challenges no longer sometimes reappear on a normal stage after loading a save.

Save folder creation could silently fail on some systems, losing runs and settings - fixed.

Permanent upgrades no longer disappear on continue, and one broken upgrade can't corrupt the whole save.

Second Chance: revive on the very last click no longer softlocks on a finished board.

Epic Collector: countrer fixed ("-217/5" coin fountain).

Grimoire: Ancient Secret achievement unlocks when it actually triggers, not on purchase.

Volume and background settings changed from the main menu now actually save.

Screenshake setting no longer silently resets to 0.

Item descriptions no longer sometimes fail to appear in shop/collection.

Tile upgrade button refreshes the tile's description and board limit immediately after upgrading.