Fix all issues from code/UX review

ISO structural:
- Move post-install.sh → airootfs/etc/calamares/ (it was never in the squashfs)
- Create airootfs/etc/skel/.config/ with all dotfiles (deploy path now works)
- Add iso/pacman.conf with [breadway] custom repo stub for calamares + bakery
- Add Calamares branding component (bos/branding.desc + show.qml)
- Add missing unpackfs.conf and mount.conf modules
- Add live-session autostart: getty autologin → bash_profile → Hyprland → calamares
- Add polkit rule for wheel-group snapper rollback (pkexec path)
- Remove wlroots from packages (bundled with Hyprland); add bakery to package list
- Fix modules-search path in settings.conf

Dotfiles:
- Rename dotfiles/hyprland/ → dotfiles/hypr/ (Hyprland reads ~/.config/hypr/)
- Fix deprecated shadow options: drop_shadow/shadow_range → shadow { } block

bos-settings Rust:
- Replace glib::MainContext::channel (removed in glib 0.19) with async_channel
- Stream bakery update output line-by-line instead of buffering all at once
- Fix zombie processes: per-package update buttons now wait() in a thread
- Fix sidebar/stack mismatch at startup: select snapshots row to match default view
- Replace deprecated MessageDialog with AlertDialog (GTK 4.10+) throughout
- Use pkexec for snapper rollback so polkit handles privilege escalation
- Add confirmation dialog before delete snapshot (was missing, rollback had one)
- Add refresh button + repopulate after delete in snapshots view
- Add "Saved" / "Error: …" status label to every config view save button
- Add "Remove" buttons to breadbox contexts and breadcrumbs profiles
- Remove hardcoded model string from breadpad defaults
- Drop unused state mod; fix config_dir HOME fallback; fix zombie in editor launches

https://claude.ai/code/session_01WszGHvCmxgcyTwNSkfLF9P

bos-settings/src/ui/sidebar.rs

@@ -1,5 +1,5 @@
 use gtk4::prelude::*;
-use gtk4::{Box as GBox, Label, ListBox, ListBoxRow, Orientation, Separator};
+use gtk4::{Box as GBox, Label, ListBox, ListBoxRow, Orientation};
 
 pub struct SidebarItem {
     pub id: &'static str,
@@ -7,17 +7,17 @@ pub struct SidebarItem {
 }
 
 pub const APPS_ITEMS: &[SidebarItem] = &[
-    SidebarItem { id: "bread", label: "bread" },
-    SidebarItem { id: "breadbar", label: "breadbar" },
-    SidebarItem { id: "breadbox", label: "breadbox" },
+    SidebarItem { id: "bread",       label: "bread"       },
+    SidebarItem { id: "breadbar",    label: "breadbar"    },
+    SidebarItem { id: "breadbox",    label: "breadbox"    },
     SidebarItem { id: "breadcrumbs", label: "breadcrumbs" },
-    SidebarItem { id: "breadpad", label: "breadpad" },
+    SidebarItem { id: "breadpad",    label: "breadpad"    },
 ];
 
 pub const SYSTEM_ITEMS: &[SidebarItem] = &[
     SidebarItem { id: "snapshots", label: "Snapshots" },
-    SidebarItem { id: "packages", label: "Packages" },
-    SidebarItem { id: "hyprland", label: "Hyprland" },
+    SidebarItem { id: "packages",  label: "Packages"  },
+    SidebarItem { id: "hyprland",  label: "Hyprland"  },
 ];
 
 pub fn build() -> (GBox, ListBox) {
@@ -32,9 +32,17 @@ pub fn build() -> (GBox, ListBox) {
     append_section(&list, "Apps", APPS_ITEMS);
     append_section(&list, "System", SYSTEM_ITEMS);
 
-    // Select first item by default
-    if let Some(first) = list.row_at_index(1) {
-        list.select_row(Some(&first));
+    // Select the snapshots row so it matches the default stack page
+    let mut i = 0;
+    loop {
+        match list.row_at_index(i) {
+            None => break,
+            Some(row) if row.widget_name() == "snapshots" => {
+                list.select_row(Some(&row));
+                break;
+            }
+            _ => i += 1,
+        }
     }
 
     vbox.append(&list);
@@ -42,7 +50,6 @@ pub fn build() -> (GBox, ListBox) {
 }
 
 fn append_section(list: &ListBox, title: &str, items: &[SidebarItem]) {
-    // Section header (non-selectable)
     let header_row = ListBoxRow::new();
     header_row.set_selectable(false);
     header_row.set_activatable(false);
@@ -55,7 +62,6 @@ fn append_section(list: &ListBox, title: &str, items: &[SidebarItem]) {
     for item in items {
         let row = ListBoxRow::new();
         row.set_widget_name(item.id);
-
         let lbl = Label::new(Some(item.label));
         lbl.set_xalign(0.0);
         lbl.set_margin_top(2);