Practice billing (usage-based)
The current billing model counts active practice-client links. practiceConnectionSummary returns total connections, ten free connections, and max(total - 10, 0) billable connections.
Tier configuration also declares $7 per connection and a $5 volume price above 50, and configuration accepts a STRIPE_PRICE_PRACTICE_OVERAGE price ID. The repository does not currently contain code that applies either price to connection counts or exports those counts to Stripe. It therefore does not establish proration or whether the volume price is marginal or retroactive.
Use the connection summary as an operational count, not an invoice estimate. Contract billing terms remain the authority until a metering implementation is present and tested.
Archiving a link removes it from the active and billable counts. Linking or reactivating a client adds it immediately; there is no pending count.