docs(changelog): document eager loading refactor

Updates the changelog to include the recent architectural shift to an eager-loading startup model. This is marked as a breaking change (`!`) because it alters the command used to run the server.

Author: fulleni

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## Upcoming Release
+- **refactor!**: shift from lazy to eager loading for robust, fail-fast startup.
+
 ## 1.0.1 - 2025-10-17
 
 - **chore**: A new migration ensures that existing user preference documents are updated to include the savedFilters field, initialized as an empty array.