* Windows: resize border from the first frame, DPI-correct window moves (#1381)
- The egui resize zones were laid out after the start page's early return, so a launch without
a design had no resize edges at all. They now run on every page.
- Windows: the main window's procedure answers WM_NCHITTEST with the resize edges and corners,
Windows' own border width at the window's DPI (8 px at 100 %), so the OS shows its resize
cursors and runs its own resize (snap included) from the first message; no egui zones there.
- Windows: WM_GETDPISCALEDSIZE returns the size winit then applies (same logical size), so the
rect the OS suggests while the title bar is dragged onto a monitor with another scale is the
rect the window gets.
- Zone sizes and hit test shared in titlebar.rs and unit-tested; Windows CI checks the hit test
right after launch and a real edge drag.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Windows resize smoke: find the main window by its title
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Windows resize smoke: probe the maximized window at the screen's edge
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
