chore(shared-drive-structure) remove credentials

Removed '09 – Credentials' section from root structure.

They were moved to the root of the shared drive and locked down to Executive Director and Secretary.

Author: jeffabailey

shared-drive-structure/root-structure.jsonc

@@ -73,11 +73,6 @@
     "description": "Outreach content: summits, case studies, training, certifications, etc."
   },
 
-  {
-    "name": "09 – Credentials",
-    "description": "Accounts and secrets (Zoom, Google Workspace, ...). Add subfolders as needed; restrict access to least privilege."
-  },
-
   {
     "name": "08 – Archives",
     "description": "Deprecated or superseded material; year buckets (e.g. 2026, 2027) for post-publication Drive copies per governance workflow.",