Premium writer, cost ledger, and metered overage
Paid plans get a premium writer, usage metering with overage, and a cost ledger.
Features
Add a premium writer for paid plans, with writer settings in project and account settings.
Paid workspaces can opt into a higher-quality writer for changelog generation instead of the default model.
Meter usage against plan limits and bill overage when generation exceeds the included allowance.
Generation is tracked against plan quotas, with an overage path so extra runs can continue on paid plans instead of hard-stopping.
Record a cost ledger for writer usage so spend can be inspected and audited.
Improvements
Ask the model for changelog items once instead of requesting them twice during generation.