fix(init-stack): use correct package add commands for bun and pnpm (#886)

Author: rsvedant

packages/init-stack/src/index.ts

@@ -234,8 +234,19 @@ async function main(): Promise<void> {
   // Install dependencies
   console.log();
   console.log(colorize.bold`Installing dependencies...`);
-  const installCommand = packageManager === "yarn" ? "yarn add" : `${packageManager} install`;
-  await shellNicelyFormatted(`${installCommand} ${packagesToInstall.join(' ')}`, {
+  const installCommandMap = new Map<string, string>([
+    ["npm", "npm install"],
+    ["yarn", "yarn add"],
+    ["pnpm", "pnpm add"],
+    ["bun", "bun add"],
+  ]);
+  const installCommand = installCommandMap.get(packageManager) ?? `${packageManager} install`;
+  // Quote each package name to avoid shell interpretation of env-overridden values.
+  const safePackages = packagesToInstall.map((p) => JSON.stringify(p));
+  await shellNicelyFormatted(`${installCommand} ${safePackages.join(' ')}`, {
+    shell: true,
+    cwd: projectPath,
+  });
     shell: true,
     cwd: projectPath,
   });