v0.9.0: UTF-8 Automata Optimization

[kolkov]

Description

Optimize UTF-8 handling in the regex engine for better Unicode performance.

Current State

• Basic UTF-8 support works correctly
• Performance may not be optimal for Unicode-heavy patterns

Potential Improvements

• Analyze Rust regex-automata UTF-8 optimizations
• Profile current UTF-8 handling in PikeVM
• Implement byte-class optimization for UTF-8 sequences
• Benchmark improvements

References

• Rust regex-automata utf8 module
• Go stdlib unicode handling

Milestone

v0.9.0