Introduce a config module to manage configuration (#22)

* Introduce a config module to manage configuration

* Remove public modifier

packages/cli/src/utils/paths.ts

@@ -1,13 +1,5 @@
-import process from 'node:process';
 import path from 'node:path'; // Import the 'path' module
 
-/**
- * Returns the target directory, using the provided argument or the current working directory.
- */
-export function getTargetDirectory(targetDirArg: string | undefined): string {
-  return targetDirArg || process.cwd();
-}
-
 /**
  * Shortens a path string if it exceeds maxLen, prioritizing the start and end segments.
  * Example: /path/to/a/very/long/file.txt -> /path/.../long/file.txt