Release v0.2.0 - Rename Refactoring

- Added rename refactoring capabilities
  - Rename variables within their scope
  - Rename methods and update all calls
  - Rename classes with automatic file renaming

- Fixed nvim-treesitter.ts_utils import error
- Removed deprecated treesitter module dependency

- @bhushan - Rename refactoring implementation

fix: improve variable detection in callbacks for extract method

Fixes issue #1 where extract method didn't properly understand variables
used in PHP callbacks and closures. Now correctly detects variables
captured via 'use' clauses and treats callback parameters appropriately.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>