Feature: Pac-Man progress bars, version table and 10 parallel downloads in pacman

Turns on ILoveCandy and VerbosePkgLists and raises ParallelDownloads to 10
in system/pacman/options.conf. install.sh now puts the Include at the end of
[options] instead of straight after the header, so these override
pacman.conf's own defaults (its ParallelDownloads = 5 would otherwise win),
and moves an existing Include there when re-run.

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

system/install.sh

@@ -6,6 +6,19 @@ repo="$(cd "$(dirname "$0")" && pwd)"
 
 # pacman: shared [options] snippet
 sudo install -m644 "$repo/pacman/options.conf" /etc/pacman.d/options.conf
-if ! grep -q '^Include = /etc/pacman.d/options.conf' /etc/pacman.conf; then
-    sudo sed -i '/^\[options\]/a Include = /etc/pacman.d/options.conf' /etc/pacman.conf
+# The Include goes at the end of [options] (just before the first repo section,
+# commented or not), so later-wins options like ParallelDownloads override
+# pacman.conf's own defaults. Any old copy (e.g. straight after [options]) is
+# removed first, so re-running this also moves it into place.
+include='Include = /etc/pacman.d/options.conf'
+tmp="$(mktemp)"
+awk -v inc="$include" '
+    $0 == inc { next }
+    seen && !done && /^#?\[/ { print inc; print ""; done = 1 }
+    /^\[options\]/ { seen = 1 }
+    { print }
+' /etc/pacman.conf >"$tmp"
+if ! cmp -s "$tmp" /etc/pacman.conf; then
+    sudo install -m644 "$tmp" /etc/pacman.conf
 fi
+rm -f "$tmp"