Release v0.3.0

This release addresses two major improvements:

Issue #7: Improved Stack Detection

• Enhanced detection of tech stacks in codebases
• More accurate rule matching based on detected stacks
• Better handling of mixed/hybrid stacks

Issue #8: File Handling Improvements

• Added 100KB file size limit with graceful truncation
• Improved file conflict resolution
• Removed backup creation for simpler workflow
• Show condensed file preview instead of full content

Other Changes:

• Improved CLI welcome message
• Updated README with sponsorship info
• Fixed test suite to handle interactive prompts
• Improved documentation and examples
• Standardized npx usage in documentation