v1.1.19

Added

• Plain English game history HTML export.
• Analysis links in the UI help, game-over summary, README, and player guide.

[1.1.17] - 2025-12-24

Added

• Hint Mode for Human vs AI (best-move square highlight).
• "Why this move?" explanations for AI moves (engine-facts-based).
• Move history panel, game clock, and PGN export.
• Plain English history view with copy/export at game end.

Changed

• Improve responsiveness by running AI search in a Web Worker (no gameplay changes).
• History panel now shows from-to coordinates for each side.
• History panel now prefixes moves with the moving piece.