Redesign span layout around retained placement

app-rust/src/desktop/config.rs

@@ -1,10 +1,8 @@
 //! Where the desktop app keeps its enrollment: `crate::client::config`'s
 //! [`EnrollmentStore`] pointed at `$XDG_CONFIG_HOME/ai-app-desktop`.
 //!
-//! Only the directory is this app's -- the file's name, its JSON, and its
-//! owner-only mode (MACHINE.md's rule for anything holding a bearer token)
-//! are the store's, shared with the Android client so the two cannot come
-//! to disagree about them.
+//! Only the directory is this app's. The shared store owns the file name,
+//! JSON, and owner-only mode required for a bearer token.
 
 use crate::client::config::EnrollmentStore;
 use std::path::PathBuf;

app-rust/src/ui/composer.rs

@@ -62,6 +62,7 @@ impl Composer {
     pub fn set_bottom_inset(&self, rsc: &mut impl UiRsc, inset: f32) {
         if let Some(pad) = rsc.ui_mut().widgets.get_mut(&self.outer_pad) {
             pad.padding.bottom = Len::abs(inset);
+            pad.exact_region = true;
         }
     }
 }