v0.3.0

What's New

Game Modes

• Endless mode — play with no goal until game over, with level progression same as Marathon

Leaderboard

• Persistent top-10 records per mode, stored as JSON via serde
• Records are only saved under default settings (Marathon goal=150, Sprint goal=40, Ultra time=120, Endless always records)
• New Records menu accessible from mode select screen

Changes

• Mode cycle: Marathon → Sprint → Ultra → Endless → Marathon
• Marathon goal changed from optional to fixed range (10–300), Endless takes over the unlimited role
• Added serde, serde_json, dirs dependencies

Metadata

• Added repository, readme, keywords, categories, rust-version to Cargo.toml
• CI now installs libasound2-dev for ALSA support

Binary

• rustris-v0.3.0-linux-x86_64 — Linux x86_64