Add Ruchy language support

[noahgift]

Summary

Adds comprehensive syntax highlighting support for the Ruchy programming language.

Language Features

• Actor model concurrency - actor keyword and messaging operators
• Pipeline operators - >> for data transformation pipelines
• Rust-like syntax - Modern systems language with memory safety
• Functional features - Pattern matching, immutable by default

Implementation Details

• Complete lexer (lib/rouge/lexers/ruchy.rb) - Full token recognition for all Ruchy constructs
• Comprehensive tests (spec/lexers/ruchy_spec.rb) - Unit tests covering syntax patterns
• Visual sample (spec/visual/samples/ruchy_demo.rhy) - Demonstration of language features

File Extensions

• .rhy (primary)
• .ruchy (alternative)

Key Syntax Patterns

// Actor definitions
actor Counter {
    let mut count: i32 = 0;
    
    receive Increment(n) -> {
        count += n;
    }
}

// Pipeline operations
data 
    >> validate 
    >> transform 
    >> persist
    
// Actor messaging
counter <- Increment(5)
result <- counter <? GetCount

Testing

All tests pass and the lexer correctly identifies Ruchy files by content and extension.

🤖 Generated with Claude Code