feat: configure repository plugins from DSH home

apps/cli/config/base.cordis.yml

@@ -22,6 +22,13 @@
   config:
     root: ['.']
 
+# `$DSH_HOME/config.yaml` replaces this row's config to select exact GitHub
+# repository Plugin generations. The app registers the DSH-owned runtime even
+# when the list is empty so a later personal-config edit can load
+# transactionally; one-shot headless runs consume the startup value only.
+- id: repository-plugins
+  name: '@deepseek-ai/dsh-repository-plugin'
+
 - id: llm
   name: '@deepseek-ai/dsh-llm'