Improved prompts and code extraction to ensure generated code:
- Matches the file type and existing code structure
- Contains NO markdown code blocks (```)
- Contains NO explanations or comments about what was done
- Is ready to be directly inserted into the target file
Changes:
- Enhanced system prompts with stricter "ABSOLUTE RULES"
- Added explicit instructions about no markdown in user prompts
- Improved extract_code() to strip markdown and explanations
- Added processing notification with prompt preview