Changelog

The diagnostics ItemsControl was inside a Border with CornerRadius which

clips content in Avalonia and prevented proper size propagation to the

ScrollViewer when items loaded asynchronously. Moved the header and

ItemsControl to be direct children of the main StackPanel.

The previous approach (setting ContentPresenter#PART_ContentPresenter

background to Transparent) didn't fully work because global and Fluent

selectors still matched and competed on specificity/timing.

Root fix: renamed the ContentPresenter in NavButtonTheme from

PART_ContentPresenter to NavContent. Now no global selector

(Fluent's or PrivStackTheme's Button template fix) can match it.

The Border with BrushTransition is the sole background owner,

giving clean animated hover transitions with zero flash.

Removed all the now-unnecessary transparent ContentPresenter overrides

from workspace-btn, nav-item, nav-item-collapsed, nav-footer-item,

and nav-footer-item-collapsed.

Desktop 1.45.5 → 1.45.6

DuckDB names the default database after the file stem (e.g. "data" for

data.entities.duckdb), not "main". The COPY FROM DATABASE command was

failing with "Catalog main does not exist" because the catalog is named

"data".

Fix: query pragma_database_list() to get the actual default database name

and use it in the COPY FROM DATABASE statement. Applied to both the

managed EntityStore::compact() and standalone compact_duckdb_file().