fix: add billing_context to SleeptimeMultiAgent V3 and V4 stream methods Missed these stream methods when adding billing_context parameter. V3 and V4 stream() methods now accept and pass billing_context to super().stream().
fix: add billing_context to SleeptimeMultiAgent V3 and V4 stream methods Missed these stream methods when adding billing_context parameter. V3 and V4 stream() methods now accept and pass billing_context to super().stream().