chore(release): bump version to 2.2.1

- Improved README with community-focused content and clear value proposition
- Organized internal documentation into docs/internal/ directory
- Fixed license reference consistency (GPL-3.0)
- Fixed isolated-vm dependency compatibility for Node 18-22
- Enhanced .npmignore to exclude internal documentation

Author: github-actions[bot]

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@devilsdev/rag-pipeline-utils",
-  "version": "2.2.0",
+  "version": "2.2.1",
   "description": "A comprehensive enterprise-grade toolkit for building RAG (Retrieval-Augmented Generation) pipelines with advanced AI/ML capabilities",
   "main": "dist/index.cjs",
   "type": "commonjs",