pi-web/.changeset/global-provider-policy.md

@jmfederico/pi-web

@jmfederico/pi-web
patch

Support only globally configured providers (Pi built-ins, environment credentials, and the agent directory's models.json). Provider registrations from Pi extensions (pi.registerProvider) are now ignored and reported with a session warning instead of leaking into every concurrent session; all other extension features keep working. Configure such providers globally in the agent directory's models.json to use them. Session daemon code changed: after updating, restart pi-web-sessiond.service manually (systemctl --user restart pi-web-sessiond).