Bug fixes and improvements

• Fixed: screen instances not getting cleaned up
• Fixed: search replace not working when disambiguating based on future search replace blocks.
• Feature: dynamically scaling up number of files shown in init
• Feature: CLAUDE.md file automatically gets included from project root.
• Prompt improvements, particularly for using search replace blocks more and read files multiple files more.

What's Changed

• 4.0.1: bug fixes and improvements by @rusiaaman in #43

Full Changelog: 4.0.0...4.1.0