chore: import upstream snapshot with attribution

packages/cli/tsdown.config.ts

@@ -0,0 +1,32 @@
+import { createRequire } from 'node:module'
+
+import { defineConfig } from 'tsdown'
+
+const require = createRequire(import.meta.url)
+const packageJSON = require('./package.json') as {
+  dependencies: Record<string, string>
+}
+
+const excludedPackages = ['inquirer']
+
+export default defineConfig({
+  entry: ['src/index.ts'],
+  shims: true, // Needed for "open" package, as it uses import.meta.url and we are building for cjs
+  target: 'node20',
+  platform: 'node',
+  format: 'cjs',
+  // Emit the bin as dist/index.js (matches the package.json "bin" entry)
+  fixedExtension: false,
+  // The CLI is an executable, it doesn't ship type declarations
+  dts: false,
+  sourcemap: true,
+  clean: true,
+  deps: {
+    // Bundle all runtime dependencies (except those that must stay external)
+    alwaysBundle: Object.keys(packageJSON.dependencies).filter(
+      (f) => !excludedPackages.includes(f)
+    ),
+  },
+  // Copy template files to dist/templates
+  copy: [{ from: 'src/templates', to: 'dist' }],
+})