chore: update wrong env name, add error handling for next question (#232)

.changeset/kind-beans-sit.md

.changeset/ten-worms-pump.md

helpers/env-variables.ts

helpers/providers/azure.ts

.../components/llamaindex/typescript/streaming/suggestion.ts

templates/components/settings/python/settings.py

...es/types/streaming/fastapi/app/api/services/suggestion.py