chore: import upstream snapshot with attribution

packages/deploy-helpers/scripts/deps.ts

@@ -0,0 +1,28 @@
+/**
+ * Dependencies that _are not_ bundled along with @cloudflare/deploy-helpers.
+ *
+ * These must be explicitly documented with a reason why they cannot be bundled.
+ * This list is validated by `tools/deployments/validate-package-dependencies.ts`.
+ */
+export const EXTERNAL_DEPENDENCIES = [
+	// Workspace packages kept external so consumers share a single copy of
+	// types and runtime code (e.g. ParseError instanceof checks).
+	"@cloudflare/cli-shared-helpers",
+	"@cloudflare/workers-utils",
+	"miniflare",
+
+	// These are externalized to avoid duplication in wrangler's bundle,
+	// which already bundles these packages itself.
+	"blake3-wasm",
+	"chalk",
+	"command-exists",
+	"dotenv",
+	"p-queue",
+	"pretty-bytes",
+	"undici",
+
+	// Externalized so wrangler bundles a single shared zod copy instead of
+	// inlining one via this package. Declared as a peerDependency (the
+	// consumer provides zod).
+	"zod",
+];