fix: re-enable SDK subchart

The duplicate SDK pods were likely a bad rolling update, not KOTS
deploying its own instance. Without the subchart the SDK is absent
entirely, breaking license validation and admin features.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: aa-replicated

helmchart.yaml

@@ -7,9 +7,7 @@ spec:
     name: gameshelf
     chartVersion: "0.0.0"
   values:
-    gameshelf-sdk:
-      enabled: false
-    adminSecret: repl{{ ConfigOption `admin_secret`}}
+adminSecret: repl{{ ConfigOption `admin_secret`}}
     siteName: repl{{ ConfigOption `site_name`}}
   builder:
     image: