docs: update Holly Pterodactyl access to Admin

Holly (unicorn20089) granted Admin access to Pterodactyl panel
March 10, 2026. Updated onboarding README and deployment plan.

Created by Chronicler #29

docs/tasks/staff-onboarding-holly/deployment-plan.md

@@ -36,7 +36,7 @@ Email: unicorn20089@gmail.com
 Username: unicorn20089
 First Name: (handle only — per staff naming policy)
 Last Name: (handle only — per staff naming policy)
-Role: User (NOT admin)
+Role: Admin ✅ (granted March 10, 2026)
 ```
 
 **Step 2 — Assign server access:**
@@ -70,6 +70,8 @@ For each of the 12 game servers, add Holly as a subuser with these permissions:
 - Homestead
 - Hytale
 
+**Note:** Holly has been granted Admin access to the Pterodactyl panel as of March 10, 2026. Steps below reflect this.
+
 **Step 3 — Send Holly her login:**
 
 Send her the panel URL and credentials via Discord DM.