Add changelog

Author: darkamenosa

CHANGELOG.md

@@ -0,0 +1,32 @@
+# Changelog
+
+All notable changes to `codex-imagen` are recorded here.
+
+## [0.2.1] - 2026-04-23
+
+### Added
+
+- Added OAuth refresh for Codex and OpenClaw auth files, including OpenClaw-compatible cross-agent locking for shared `openai-codex` profiles.
+- Ignored generated `out/` image artifacts in git.
+
+### Changed
+
+- Simplified the CLI implementation while preserving prompt, reference-image, multi-output, and JSON behavior.
+- Kept Node.js 22+ as the documented target without enforcing it at runtime.
+
+## [0.2.0] - 2026-04-23
+
+### Changed
+
+- Switched the helper from the Codex app-server flow to direct ChatGPT/Codex Responses `image_generation` calls using local OAuth credentials.
+- Updated the skill, README, package metadata, and OpenAI skill metadata for direct OAuth usage.
+
+### Added
+
+- Added OpenClaw auth-profile discovery, Codex auth fallback discovery, reference image inputs, smoke checks, JSON output, verbose diagnostics, timeout handling, and multi-image streaming saves.
+
+## [0.1.3] - 2026-04-22
+
+### Added
+
+- Added public repository metadata and README documentation.