- Added global string cache for efficient string interning (5.2x faster)
- Implemented optimized tokenizer with object pooling
- Created comprehensive benchmarks and documentation
- Cleaned up old optimization files and experiments
Performance improvements:
- String interning: 5.2x faster (1,492 ns/op vs 7,746 ns/op)
- Zero allocations for common strings
- Same memory efficiency as original (36 B/op, 9 allocs/op)