fix(types): skip node_modules bundling in dts to avoid CJS d.ts errors

tsdown 0.22 + rolldown-plugin-dts can't bundle transitive CJS d.ts
files (postcss, esbuild, webpack-virtual-modules). Treat all
node_modules as external so the bundled dts references them as
imports instead of inlining.

Author: antfu

packages/types/tsdown.config.ts

@@ -4,5 +4,8 @@ import baseConfig from '../../tsdown.config.ts'
 
 export default defineConfig({
   ...baseConfig,
+  deps: {
+    skipNodeModulesBundle: true,
+  },
   plugins: [StaleGuardRecorder()],
 })

test/__snapshots__/tsnapi/@slidev/types/index.snapshot.d.ts

@@ -0,0 +1,6 @@
+/**
+ * Generated by tsnapi — public API snapshot of `@slidev/types`
+ */
+// #region Re-exports
+export * from './dist/index.d.mts'
+// #endregion

test/__snapshots__/tsnapi/@slidev/types/index.snapshot.js

@@ -0,0 +1,22 @@
+/**
+ * Generated by tsnapi — public API snapshot of `@slidev/types`
+ */
+// #region Variables
+export var defineAppSetup /* const */
+export var defineCodeblockTransformer /* const */
+export var defineCodeRunnersSetup /* const */
+export var defineContextMenuSetup /* const */
+export var defineKatexSetup /* const */
+export var defineMarkdownTransformer /* const */
+export var defineMermaidRendererSetup /* const */
+export var defineMermaidSetup /* const */
+export var defineMonacoSetup /* const */
+export var definePreparserSetup /* const */
+export var defineRootSetup /* const */
+export var defineRoutesSetup /* const */
+export var defineShikiSetup /* const */
+export var defineShortcutsSetup /* const */
+export var defineTransformersSetup /* const */
+export var defineUnoSetup /* const */
+export var defineVitePluginsSetup /* const */
+// #endregion