Update CHANGELOG for 1.15.0 release

Author: koriym

CHANGELOG.md

@@ -5,6 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.15.0] - 2026-02-03
+
+### Added
+- Add `ServerContextInterface` for coroutine-safe request handling in Swoole/RoadRunner environments
+- Add `GlobalServerContext` as default implementation using `$_SERVER` superglobal
+- Add `RepositoryLoggerInterface` with `reset()` method for long-running process support
+
+### Changed
+- Bind `ServerContextInterface` to `GlobalServerContext` in `QueryRepositoryModule`
+- Use `ServerContextInterface` in `ResourceStorage` instead of direct `$_SERVER` access
+
 ## [1.14.0] - 2025-01-24
 
 ### Added