Current plan + this user's aggregate usage against its limits.

Powers the dashboard usage bars + upgrade prompts. NULL limit = unlimited.

Seats accounts (every account since plan 37) answer from the seat plan: machines included, the awake cap, and no storage or compute-minute caps, which plan_service's legacy tiers still carry but nothing enforces for them. Showing those legacy numbers told free users they had 2 agents, 1 GB and 300 minutes when the plan is 3 machines with 1 awake.