chore: implement semantic versioning and update CHANGELOG.md

- Transition from date-based versioning to semantic versioning
- Start with version 1.0.1 following semantic versioning standards
- Add initial CHANGELOG.md file to document version changes

Author: fulleni

CHANGELOG.md

@@ -0,0 +1,5 @@
+# Changelog
+
+## 1.0.1
+
+-   **Version Control:** Transitioned from date-based versioning to semantic versioning. This release marks the first version following the semantic versioning standard.