fix(rspress-plugin): set config.ssg.experimentalWorker true if enable ssg-md (module-federation#4430)

Co-authored-by: Zack Jackson <25274700+ScriptedAlchemy@users.noreply.github.com>

Author: 2heal1

.changeset/thick-poems-fetch.md

@@ -0,0 +1,5 @@
+---
+'@module-federation/rspress-plugin': patch
+---
+
+fix(rspress-plugin): set config.ssg.experimentalWorker true if enable ssg-md

packages/rspress-plugin/src/plugin.ts

@@ -66,6 +66,15 @@ export function pluginModuleFederation(
     async config(config) {
       if (!isDev() && config.ssg !== false) {
         enableSSG = true;
+        if (config.llms) {
+          logger.info(
+            'Detect you set "llms: true", enable experimentalWorker for ssg to enable parallel build',
+          );
+          config.ssg = {
+            ...(typeof config.ssg === 'object' ? config.ssg : {}),
+            experimentalWorker: true,
+          };
+        }
       }
 
       // config.builderConfig ||= {};