Redmine

Currently, the "This project is closed and read-only" warning is shown only on the project Overview page.

This can confuse users who open an issue (or another project page) directly without going through the Overview page, because they may not notice that the project is closed and do not understand why editing is not allowed.

I propose moving this warning to the base layout so it is displayed on most pages within a closed project. This makes the project status clear regardless of entry point.