The removeLastModifiedComments function previously copied all lines without filtering.
This change adds logic to remove lines containing "last modified" (case-insensitive)
after trimming whitespace.
- Remove unnecessary comments and simplify logging setup in analyze.go
- Improve directory skipping logic in discoverSourceFiles
- Add error handling to buildProjectContext and include Git remotes
- Simplify removeLastModifiedComments in edit.go by direct slice append
- Introduce check for .md extension and use technical writer system prompt.
- Adjust response cleaning: trim for markdown, use CleanCodeResponse for code.
- Remove nolint comment and unnecessary line skipping in removeLastModifiedComments.
