MathMaster 1.2.1 для Minecraft 1.21.1 (NeoForge)

- Added Number 7 and Number 6
- Added Playfair's Axiom, an active geometry skill. Designate a creature with intellect as the base point, then move along a chosen axis to keep it from approaching or harming you. 
- Added the Digital Pollution Meter and its crafting recipe. Equip it in the Curios `trinkets` slot to see your pollution level in a pixel-style HUD.
- Added English translations for all 1,228 built-in math-book and insight questions. You can switch between Chinese and English in the quiz screens; both languages use the same question IDs, answers, and completion progress.
- Added a short “After Studying” introduction to the MathMaster guide.
- High digital pollution now brings distorted pixel-style symbols, garbled text, and multilingual whispers.