Fake dedicated "installed"/"#" columns in the checklist via a fixed-width tag prefix

Requested: separate, non-interactive "installed" (x) and "#" (instance
count) columns ahead of the actual selectable checkbox, with the
description no longer carrying any install-status text at all.

whiptail's checklist only has one interactive element per row — the
checkbox — so there's no such thing as a real extra column, tabbable or
not; the tag and item fields are always just inert display text regardless
of what's in them. The closest real equivalent: bake a fixed-width "x"
(installed) + count prefix into the tag field itself. whiptail pads every
row's tag field to the same width, so it lines up visually like columns
even though it's one string underneath. Extract the plain name back out
before dispatch by taking the last whitespace-separated token, since
service names never contain spaces — robust regardless of the exact
prefix width.

Description field is back to plain SERVICE_DESC text now that install
status lives in the tag prefix instead.

setup.sh

@@ -422,43 +422,35 @@ while true; do
         _box_h=$((_list_h + 8))
         [ "$_box_h" -gt "$((_term_lines - 2))" ] && _box_h=$((_term_lines - 2))
 
+        # whiptail's checklist has exactly one interactive element per row —
+        # the checkbox itself. The "tag" field (what's displayed right after
+        # it) and the "item" field (description) are both just inert display
+        # text; there is no such thing as a separately tabbable/selectable
+        # sub-field within a row. So a fixed-width "installed" (x) and "#"
+        # (instance count) prefix baked into the tag field is the closest
+        # equivalent to real extra columns whiptail can render — it lines up
+        # visually because whiptail pads every row's tag field to the same
+        # width, but it's still one string under the hood. Extracted back
+        # into just the plain service name below before dispatch.
         svc_items=()
         for name in "${SVCS[@]}"; do
-            tag="${SERVICE_DESC[$name]}"
-            svc_tag="$name"
-            # Marker goes at the FRONT, not appended after the description.
-            # whiptail hard-truncates each row to the dialog's fixed width
-            # (78 here) with no ellipsis or other sign it happened —
-            # confirmed live: appending "  [installed]" after a long enough
-            # description (fmd's is 68 chars; +13 for the suffix is 81,
-            # past the width) silently drops the marker off the end, making
-            # an installed service look uninstalled with no visual cue
-            # anything was cut. "[installed]" itself also ate a lot of the
-            # already-tight width just by being 11 characters wide — "[N]"
-            # (install count) says the same thing in 3, and for the
-            # multi-instance services (CLAUDE.md's pattern — a base install
-            # plus any number of "<name>-<suffix>" siblings) it's more
-            # informative than a flat "installed", since N > 1 means several
-            # separate instances exist.
+            _inst_mark=" "
+            _count_str="  "
             _count="$(install_count "$name")"
             if [ "$_count" -gt 0 ]; then
-                tag="[$_count] $tag"
-                # The checkbox's own [ ]/[*] state is reserved for "install
-                # this now", so an already-installed item stays unchecked by
-                # design (checking it would reinstall on <Ok>); prefixing
-                # the name itself with "*" gives a second, harder-to-miss
-                # cue right next to the checkbox, distinct from that
-                # selection state. Stripped back off below before dispatch.
-                svc_tag="*$name"
+                _inst_mark="x"
+                _count_str="$(printf "%-2d" "$_count")"
             fi
-            svc_items+=("$svc_tag" "$tag" "OFF")
+            svc_tag="$(printf "%s %s %s" "$_inst_mark" "$_count_str" "$name")"
+            svc_items+=("$svc_tag" "${SERVICE_DESC[$name]}" "OFF")
         done
         CHOICE=$(whiptail --title "${CHOSEN_CAT^^}" --checklist \
-            "Space to select, Enter to install. [N] = N instance(s) already installed:" "$_box_h" 78 "$_list_h" \
+            "installed(x) #instances  name                    Space=select to install, Enter=go:" "$_box_h" 78 "$_list_h" \
             "${svc_items[@]}" 3>&1 1>&2 2>&3 </dev/tty) || continue
         eval "SELECTED=($CHOICE)"
-        # Undo the display-only "*" prefix before these reach run_service.
-        for i in "${!SELECTED[@]}"; do SELECTED[$i]="${SELECTED[$i]#\*}"; done
+        # Undo the display-only "x N " prefix — name is always the last
+        # whitespace-separated token, since service names never contain spaces.
+        for i in "${!SELECTED[@]}"; do SELECTED[$i]="${SELECTED[$i]##* }"; done
     else
         echo ""; echo "${CHOSEN_CAT^^}:"
         for name in "${SVCS[@]}"; do