RBAC plan

Placeholder. Canonical source: outputs/ACCESS_CONTROL.md §“V1 RBAC model” + §“Per-role permissions matrix”.

Suggested Google Groups (V2 — names TBD):

• skild-operators@skild.ai
• skild-deployment-leads@skild.ai
• skild-managers@skild.ai
• skild-engineers@skild.ai
• skild-ops-admins@skild.ai