R7.1: bundled installers, one dmg and one setup.exe for all six apps

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

packaging/windows/bundle.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Builds dist/ElyOffice-<version>-windows-x86_64-setup.exe from the apps' setups.
+set -euo pipefail
+
+root=$(cd "$(dirname "$0")/../.." && pwd)
+dist=${ELY_DIST:-$root/dist}
+version=$(awk -F'"' '/^version = / { print $2; exit }' "$root/Cargo.toml")
+makensis=${MAKENSIS:-"/c/Program Files (x86)/NSIS/makensis.exe"}
+[ -x "$makensis" ] || {
+  echo "bundle.sh: no makensis at $makensis; install NSIS" >&2
+  exit 1
+}
+apps=$root/target/stage/bundle-apps.nsh
+mkdir -p "$(dirname "$apps")"
+: >"$apps"
+for name in $(awk -F'\t' '$4 == 1 { print $2 }' "$root/packaging/apps.tsv"); do
+  setup=$dist/$name-$version-windows-x86_64-setup.exe
+  [ -f "$setup" ] || {
+    echo "bundle.sh: no $setup; run installer.sh first" >&2
+    exit 1
+  }
+  printf '!insertmacro ElyApp "%s" "%s"\n' "$name" "$(cygpath -w "$setup")" >>"$apps"
+done
+out=$dist/ElyOffice-$version-windows-x86_64-setup.exe
+"$makensis" -V2 -INPUTCHARSET UTF8 -DVERSION="$version" -DAPPS="$(cygpath -w "$apps")" \
+  -DOUTFILE="$(cygpath -w "$out")" "$(cygpath -w "$root/packaging/windows/bundle.nsi")"
+echo "$out"