fix: add ADMIN_* env vars to deploy workflow .env.prod generation

Without these variables the admin user seed was skipped in production.

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

.env.prod.example

@@ -20,3 +20,8 @@ DART_API_KEY=your_dart_api_key
 
 # CORS (comma-separated origins, used by backend)
 CORS_ORIGINS=https://your-domain.com
+
+# Admin user (auto-created on startup if not exists)
+ADMIN_USERNAME=your_admin_username
+ADMIN_EMAIL=your_admin_email
+ADMIN_PASSWORD=your_admin_password

.gitea/workflows/deploy.yml

@@ -32,6 +32,9 @@ jobs:
           KIS_ACCOUNT_NO=${{ secrets.KIS_ACCOUNT_NO }}
           DART_API_KEY=${{ secrets.DART_API_KEY }}
           CORS_ORIGINS=${{ secrets.CORS_ORIGINS }}
+          ADMIN_USERNAME=${{ secrets.ADMIN_USERNAME }}
+          ADMIN_EMAIL=${{ secrets.ADMIN_EMAIL }}
+          ADMIN_PASSWORD=${{ secrets.ADMIN_PASSWORD }}
           EOF
 
       - name: Deploy with Docker Compose