One frame for every window (frame.rs): command dialogs dock right and shrink to their content (260 to 380 px, 560 for table dialogs), floating windows are centred and capped (460 px, 760 for tables); header and footer rows right-align without stretching the dialog, long texts wrap; all windows migrated; tests: no egui::Window outside frame.rs, every command's dialog and the floating windows measured within limits

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/ui-egui/src/prefs.rs

@@ -205,10 +205,9 @@ pub fn show(app: &mut SolveApp, ctx: &egui::Context) {
     let mut open = true;
     let sections = ["General", "Navigation", "Display", "Sketch", "Selection"];
     let before = app.preferences.clone();
-    egui::Window::new("Preferences")
+    crate::frame::window(ctx, "Preferences", crate::frame::Width::Wide)
         .id(egui::Id::new("sc_prefs"))
         .open(&mut open)
-        .default_pos(egui::pos2(300.0, 120.0))
         .default_size([560.0, 360.0])
         .show(ctx, |ui| {
             ui.horizontal_top(|ui| {