DayAnnouncer adds bStatsShadow plugin for build stability

The DayAnnouncer plugin adds bStatsShadow for build stability. This release brings 11 commits focused on plugin improvements, most notably switching from manual jar bundling to the Shadow plugin for bStats relocation, which prevents conflicts with other plugins. improvements - Add Shadow plugin for bStats relocation (prevents conflicts) - Fix listener leaks and remove dead code - Add bStats, update checker, config versioning, toggle persistence features - Add multi-world support with commands, multi-channel output, sounds - Implement message pools, per-world output, new placeholders, dynamic defaults - Add GNU Affero General Public License v3 - Add configurable dawn threshold and prevent double announcements organization - Add GNU Affero General Public License v3