posthog-v7.45.4

Patch changes

• 86ad9e7 Streaming generations interrupted before the provider reported any usage no longer send zero $ai_cache_read_input_tokens, $ai_cache_creation_input_tokens, or $ai_reasoning_tokens. A fabricated 0 reads as a report of nothing, so cost processing priced an unknown generation as a known $0.00 instead of leaving it unknown. Streams whose usage was reported keep the historical zero defaults. — Thanks @bernatixer!