Implement WokeLang interpreter in Rust

[hyperpolymath]

Complete implementation of WokeLang with:

Lexer (src/lexer/):

• Token definitions for all keywords, operators, literals
• Uses logos for fast tokenization
• Handles comments, strings with escapes, numbers

Parser (src/parser/):

• Recursive descent parser
• Full expression parsing with correct precedence
• All statement types: remember, when/otherwise, repeat, attempt safely
• Pattern matching with decide based on
• Emote tags, consent blocks, gratitude declarations

AST (src/ast/):

• Complete type definitions for all language constructs
• Spanned nodes for error reporting

Interpreter (src/interpreter/):

• Tree-walking interpreter
• Scoped environments for variables
• Built-in functions: print, len, toString, toInt
• Consent system with interactive prompts
• Pattern matching evaluation
• All operators (arithmetic, comparison, logical)

CLI (src/main.rs):

• woke <file.woke> - run program
• woke --tokenize - show tokens
• woke --parse - show AST

Examples:

• examples/hello.woke - feature showcase
• examples/demo.woke - runnable demo