docs(changelog): prepare 0.52.0 release

Author: lmeyerov

CHANGELOG.md

@@ -8,6 +8,8 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ## [Development]
 <!-- Do Not Erase This Section - Used for tracking unreleased changes -->
 
+## [0.52.0 - 2026-03-15]
+
 ### Added
 - **GFQL / Cypher**: Added direct local Cypher multihop support for single variable-length relationship endpoint traversals through `g.gfql("MATCH ...")`, including `[*n]`, `[*m..n]`, and `[*]` in forward, reverse, undirected, and typed forms.