OpenAI Responses treats reasoning.content as the raw chain-of-thought
and summary as a skim view. Aether was dumping thinking into summary
and leaving content null, which hid the thinking panel in desktop UIs.
Put reasoning_content / equivalent text into reasoning_text content
parts, and copy the same text into summary_text so CLI clients still
work. Stream emitters now send both reasoning_text and summary events.
Kayphoon
c5adcf0312