Prepare v2.0.0 release

CHANGELOG.md

@@ -2,9 +2,27 @@
 
 All notable changes to this project will be documented in this file.
 
-## Unreleased
+## 2.0.0 - 2026-07-28
 
-- No unreleased changes recorded yet.
+### Breaking Changes
+
+- Breaking database schema changes were introduced in this release; existing databases may require migration or recreation before upgrading.
+
+### Added
+
+- Broader player and admin release coverage across onboarding, playlist playback, background task handling, and media-region support.
+
+### Changed
+
+- The database bootstrap and migration flow were reorganized, with shared DB helpers split out to support the newer schema layout.
+- Admin and signage views were updated around the newer list, playlist, and RBAC behavior, including playlist scheduling and screen/client actions.
+- Player runtime, onboarding, and region rendering were tightened so HTML, image, RSS, RTMP, text, video, and webpage regions follow the newer playback flow.
+- Background task, upload sync, and data-source refresh handling were refined across the web app and startup paths.
+- Docker, environment, README, and websocket/api documentation were refreshed to match the current release structure.
+
+### Fixed
+
+- Client name checks, playlist editing, and slide/media synchronization paths were adjusted to better preserve existing references during admin and player updates.
 
 ## 1.5.16 - 2026-07-26