Update CHANGELOG for version 0.2.0-dev

Documented changes for version 0.2.0-dev, including new features, improvements, and fixes.

Author: iMattPro

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## 0.2.0-dev - 2026-05-09
+
+### Added
+
+- Added an **Embedded media** consent category for third-party media such as iframes, including ACP support, migration handling, and dedicated template flags.
+- Added embedded media placeholder handling so blocked media can be presented cleanly until consent is granted.
+- Added support for preserving explicit script IDs in registered script definitions.
+- Added caching and memoization for locally resolved assets to reduce repeated consent script resolution work.
+- Added clearer installation checks and messaging for unsupported phpBB or PHP versions.
+
+### Changed
+
+- Improved deferred script loading performance by trimming payload data, reducing repeated language loading, and refining inline JavaScript handling.
+- Refined embedded media markup and styling for better compatibility across phpBB styles and cleaner placeholder output.
+- Updated the developer documentation to cover the media category, script-loading behavior, and current integration patterns.
+- Raised the minimum PHP requirement to **PHP 7.2**.
+
+### Fixed
+
+- Fixed consent revocation behavior for embedded media so revoked iframes are re-blocked and reloaded immediately.
+- Fixed several test regressions and expanded automated coverage for media handling, caching, install checks, and service behavior.
+
+## 0.1.0-dev - 2026-05-03
+
+### Added
+
+- Initial release of Consent Manager for phpBB with a consent banner, settings modal, persistent preferences link, and category-based consent controls.
+- Added support for **Necessary**, **Analytics**, and **Marketing** consent categories, including deferred script loading for registered integrations.
+- Added ACP management for categories, registered services, consent versioning, and admin-managed integrations.
+- Added consent logging for audit/compliance purposes and CSV export of consent logs.
+- Added developer documentation and extension integration hooks for consent-aware script registration.
+
+### Changed
+
+- Overrode phpBB's default cookie notice so forums can use a single consent experience managed by this extension.