New-laptop readiness: firstrun.sh, --with-apps, DMS theme sync, guarded autostart, doctor checks

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

.config/sway/firstrun.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+# Runs at every sway start; does something only on a fresh machine (idempotent):
+#   - picks the shipped wallpaper in DMS when none is chosen yet
+#   - generates the monitor layout when this machine has none
+cfg=${XDG_CONFIG_HOME:-$HOME/.config}
+walls=$HOME/.local/share/backgrounds
+
+# wait until DMS has registered its IPC targets (up to ~40 s)
+i=0
+while [ "$i" -lt 40 ]; do
+    dms ipc show 2>/dev/null | grep -q '^target wallpaper' && break
+    i=$((i+1)); sleep 1
+done
+cur=$(dms ipc call wallpaper get 2>/dev/null | head -1)
+
+# DMS prints the path when a wallpaper is set; anything else means "none yet"
+case "$cur" in
+    /*) ;;
+    *) [ -f "$walls/kitty.jpg" ] && dms ipc call wallpaper set "$walls/kitty.jpg" >/dev/null 2>&1 ;;
+esac
+
+# monitor layout (laptop panel left, the rest to the right); the file is per machine
+[ -e "$cfg/sway/config.d/05-outputs.conf" ] || "$cfg/sway/outputs-setup.sh" --auto >/dev/null 2>&1
+exit 0