Add success message for package installation

Added a message indicating successful installation and usage of the package.

Author: hydraxman

deepstudio/private-install.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PKG="${DEEPSTUDIO_PKG:-deepstudio-server}"
+
+require_npm() {
+  if ! command -v npm >/dev/null 2>&1; then
+    echo ""
+    echo "❌ Node.js / npm not found."
+    echo "Please install Node.js first:"
+    echo "https://nodejs.org/en/download"
+    echo ""
+    exit 1
+  fi
+}
+
+b64() {
+  if command -v openssl >/dev/null 2>&1; then
+    printf '%s' "$1" | openssl base64 -A
+  else
+    printf '%s' "$1" | base64
+  fi
+}
+
+cleanup() {
+  npm config delete --global registry >/dev/null 2>&1 || true
+  npm config delete --global "${AUTH_PREFIX}:username" >/dev/null 2>&1 || true
+  npm config delete --global "${AUTH_PREFIX}:_password" >/dev/null 2>&1 || true
+  npm config delete --global "${AUTH_PREFIX}:email" >/dev/null 2>&1 || true
+  echo "✅ Cleanup complete."
+}
+
+require_npm
+
+read -r -p "Enter npm registry URL (for ex: https://xxx.pkgs.xxx.com/xxx/_packaging/xxx/npm/registry/): " REGISTRY
+REGISTRY="${REGISTRY%/}"
+
+if [ -z "$REGISTRY" ]; then
+  echo "Registry URL is required."
+  exit 1
+fi
+
+# derive auth prefix
+URI_NO_PROTO="${REGISTRY#https://}"
+URI_NO_PROTO="${URI_NO_PROTO#http://}"
+AUTH_PREFIX="//${URI_NO_PROTO}/"
+
+trap cleanup EXIT
+
+printf "Enter Azure DevOps PAT (Packaging:Read): "
+stty -echo
+read -r PAT
+stty echo
+printf "\n"
+
+if [ -z "$PAT" ]; then
+  echo "PAT is empty."
+  exit 1
+fi
+
+PAT_B64="$(b64 "$PAT")"
+unset PAT
+
+npm config set --global registry "${REGISTRY}/" >/dev/null
+npm config set --global "${AUTH_PREFIX}:username" microsoft >/dev/null
+npm config set --global "${AUTH_PREFIX}:_password" "${PAT_B64}" >/dev/null
+npm config set --global "${AUTH_PREFIX}:email" npm@example.com >/dev/null
+
+npm install -g "${PKG}@latest" --registry "${REGISTRY}/"
+
+echo ""
+echo "✅ Installed ${PKG}@latest successfully."
+echo "You can now run ${PKG} to launch it."