- service now delegates model/provider/pricing logic to agent crate
- ChatService built at startup with EmbedService (graceful degradation)
- RoomService wired with EmbedService for Qdrant embedding
- Add error types for embedding service
Add the second half of the password reset flow: /password/confirm API
endpoint with token validation, transactional password update, and a
frontend confirm-password-reset-page with proper error handling for
expired/used tokens. Updates generated SDK/client bindings.