Changelog

Info toasts now show only the message without a header label.

Success/Warning/Error toasts retain their labels.

The script ran dotnet run as a foreground process, but with

set -euo pipefail, bash's default SIGINT handling could leave

the child process running. Now the app is launched in the

background with an explicit trap that forwards SIGINT/SIGTERM

to the child PID and waits for it to exit cleanly.

Calls mainWindow.AttachDevTools() in #if DEBUG so the built-in

element inspector, visual tree viewer, and layout visualizer are

available via F12 during development.

When a child's DesiredSize exceeds the arranged rect, ArrangeCore

may let the child render at its desired width, overflowing into the

adjacent pane. ClipToBounds on the parent Control doesn't reliably

clip in this scenario. Now explicitly sets Clip = RectangleGeometry

on each pane after arrange, guaranteeing content stays within its

allocated region.

The Border→SplitPanel→Border-host chain wasn't properly constraining

child content width. Rewrote as a Control subclass that directly

manages Pane1, Pane2, and the resize handle as visual/logical

children, with MeasureOverride and ArrangeOverride that measure each

child with its exact proportional width constraint and arrange at

exact rects. No intermediate containers to lose constraints.