Optional statistics and clearer engine help

Optional usage statistics, expanded engine settings guidance, and easier deferred updates.

Added

  • Optional usage statistics with explicit consent, inline privacy details, and an Analytics settings button to change your choice.
  • A privacy notice describing the selected usage events and excluded game content. Session recording and automatic interaction capture are disabled.
  • Expanded engine help covering threads, memory, analysis presets, the two full-game analysis passes, and troubleshooting.

Changed

  • Deferred app updates can be installed through Help → Update and Reload.
  • The Storage menu now appears immediately before Help.

Fixed

  • Analysis could stall before searching when Stockfish increased its thread count. Engine workers now finish loading before thread settings are applied.
  • Production now ships the matching patched engine script with the app under a new filename, avoiding an older script from the separate engine host or browser cache.