feat: Add Pig game mode with single-die push-your-luck mechanics

feat: Add Alien Invasion game mode with Martian Dice mechanics

docs: Add comprehensive implementation guide and improve home page layout

feat: Add Knucklebones game mode with grid-based mechanics

feat: Auto-hold scoring dice and separate volume sliders

feat: Separate SFX/music volume sliders and in-game sidebar rules

fix: Create Audio objects in parent window context

feat: Add music volume slider to sidebar

fix: Eliminate audio latency and persist sound preferences

feat: Fix navbar and add sound system

feat: Prepare for Hugging Face Spaces deployment

feat: Add config, database, realtime, and UI layers with full multiplayer gameplay

feat: Initial project setup with complete game engine