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

iso/airootfs/etc/skel/.config/hypr/hyprland.conf

@@ -0,0 +1,56 @@
+monitor=,preferred,auto,1
+
+exec-once = breadd
+exec-once = breadbar
+exec-once = breadbox-sync
+
+source = ~/.config/hypr/keybinds.conf
+
+general {
+    gaps_in = 5
+    gaps_out = 10
+    border_size = 2
+    col.active_border = rgba(88c0d0ff)
+    col.inactive_border = rgba(4c566aff)
+    layout = dwindle
+}
+
+decoration {
+    rounding = 8
+    blur {
+        enabled = true
+        size = 6
+        passes = 2
+    }
+    shadow {
+        enabled = true
+        range = 12
+        render_power = 3
+    }
+}
+
+animations {
+    enabled = true
+    bezier = ease, 0.25, 0.1, 0.25, 1.0
+    animation = windows, 1, 4, ease
+    animation = fade, 1, 4, ease
+    animation = workspaces, 1, 5, ease
+}
+
+input {
+    kb_layout = us
+    follow_mouse = 1
+    touchpad {
+        natural_scroll = true
+    }
+}
+
+dwindle {
+    pseudotile = true
+    preserve_split = true
+}
+
+misc {
+    disable_hyprland_logo = true
+    disable_splash_rendering = true
+}