v1.2.0

Rust Library

• Improved memory management with proper deallocation in free_string
• Added unit tests for all public functions

Lua Interface

• Updated to match new Rust function names and behaviors
• Implemented proper error handling for all functions
• Improved memory management to prevent leaks and invalid frees

Bug Fixes

• Fixed memory leak in free_string function
• Resolved type mismatch when calling free_string from Lua
• Corrected handling of NULL pointers returned from Rust functions