* 🔖 refactor: citation handling with support for both literal and Unicode formats
* refactor: file search messages for edge cases in documents
* 🔧 refactor: Enhance citation handling with detailed regex patterns for literal and Unicode formats
* 🔧 refactor: Simplify file search query handling by removing unnecessary parameters and improving result formatting
* ✨ test: Add comprehensive integration tests for citation processing flow with support for literal and Unicode formats
* 🔧 refactor: Improve regex match handling and add performance tests for citation processing