v0.1

First tagged release of the Alchemist Study firmware.

• 7 realms (Skyrim, Baldur's Gate 3, The Witcher 3, World of Warcraft, Zelda, Minecraft, Ultima VII) — 3 reed-sensed ingredients combine into 7 potions each.
• Stir-to-brew with a difficulty curve (Easy/Medium/Hard) and a power bar.
• Three random full-screen reveal animations.
• Settings menu (realm, mute, brightness, stir level, hardware test, firmware) persisted to NVS.
• Built-in hardware diagnostic + standalone c3-hwcheck build.

Firmware version string (FW_VERSION) tracks this tag. Audio needs a passive buzzer.