v1.0.4 - Achievements & Hints update — Homgard Steam update #399433

– Added Steam achievements. Existing players will unlock earned achievements retroactively when loading the game.– Added Hint Coins, which can be spent to reveal a random empty or incorrectly filled cell. Revealed cells are permanently locked, spent coins cannot be recovered, and more Hint Coins are earned by revealing the map.– Cell Counting has been renamed to Cell Marking, with a new Sticky option. The default Temporary mode works as before, while Sticky marks remain on the board until cleared.– Cell Marking no longer marks inert cells or Blue Cores.– Added controller and keyboard support for navigating the Puzzle UI overlay.– Fixed some button bindings and key input combinations not working consistently.– Tweaked the Windows icon setup to make the generic icon issue less likely to appear.– Polished the radio button layout.Small follow-up:– Added an option to hide the Hint Coin wallet...