Add @backstage/cli-defaults package

Introduces a new `@backstage/cli-defaults` package that re-exports all
standard CLI modules as a single array, simplifying dependency management
for consumers. The CLI's `CliInitializer` is updated to support array
exports alongside single module exports. The create-app template,
changesets, and CLI fallback are updated to use `@backstage/cli-defaults`
instead of listing 11 individual modules.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/cli-defaults/.eslintrc.js

@@ -0,0 +1 @@
+module.exports = require('@backstage/cli/config/eslint-factory')(__dirname);

packages/cli-defaults/catalog-info.yaml

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+apiVersion: backstage.io/v1alpha1
+kind: Component
+metadata:
+  name: backstage-cli-defaults
+  title: '@backstage/cli-defaults'
+  description: Default set of CLI modules for the Backstage CLI
+spec:
+  lifecycle: experimental
+  type: backstage-cli-module
+  owner: tooling-maintainers

packages/cli-defaults/package.json

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+{
+  "name": "@backstage/cli-defaults",
+  "version": "0.0.0",
+  "description": "Default set of CLI modules for the Backstage CLI",
+  "backstage": {
+    "role": "cli-module"
+  },
+  "publishConfig": {
+    "access": "public",
+    "main": "dist/index.cjs.js",
+    "types": "dist/index.d.ts"
+  },
+  "homepage": "https://backstage.io",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/backstage/backstage",
+    "directory": "packages/cli-defaults"
+  },
+  "license": "Apache-2.0",
+  "main": "src/index.ts",
+  "types": "src/index.ts",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "backstage-cli package build",
+    "clean": "backstage-cli package clean",
+    "lint": "backstage-cli package lint",
+    "prepack": "backstage-cli package prepack",
+    "postpack": "backstage-cli package postpack"
+  },
+  "dependencies": {
+    "@backstage/cli-module-auth": "workspace:^",
+    "@backstage/cli-module-build": "workspace:^",
+    "@backstage/cli-module-config": "workspace:^",
+    "@backstage/cli-module-create-github-app": "workspace:^",
+    "@backstage/cli-module-info": "workspace:^",
+    "@backstage/cli-module-lint": "workspace:^",
+    "@backstage/cli-module-maintenance": "workspace:^",
+    "@backstage/cli-module-migrate": "workspace:^",
+    "@backstage/cli-module-new": "workspace:^",
+    "@backstage/cli-module-test-jest": "workspace:^",
+    "@backstage/cli-module-translations": "workspace:^"
+  },
+  "devDependencies": {
+    "@backstage/cli": "workspace:^"
+  }
+}

packages/cli-defaults/src/index.ts

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+/*
+ * Copyright 2025 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import auth from '@backstage/cli-module-auth';
+import build from '@backstage/cli-module-build';
+import config from '@backstage/cli-module-config';
+import createGithubApp from '@backstage/cli-module-create-github-app';
+import info from '@backstage/cli-module-info';
+import lint from '@backstage/cli-module-lint';
+import maintenance from '@backstage/cli-module-maintenance';
+import migrate from '@backstage/cli-module-migrate';
+import newModule from '@backstage/cli-module-new';
+import testJest from '@backstage/cli-module-test-jest';
+import translations from '@backstage/cli-module-translations';
+
+export default [
+  auth,
+  build,
+  config,
+  createGithubApp,
+  info,
+  lint,
+  maintenance,
+  migrate,
+  newModule,
+  testJest,
+  translations,
+];