examples/Assistants_API_overview_python.ipynb and examples/Creating_slides_with_Assistants_API_and_DALL-E3.ipynb use client.beta.assistants and client.beta.threads. The Assistants API shuts down on August 26, 2026, so this is urgent. Official OpenAI documentation (https://platform.openai.com/docs/assistants/deep-dive/run-lifecycle%23.webm)
Acceptance criteria: replace Assistants/Threads/Runs with Responses API patterns; preserve tool-use and slide-
generation behavior; update explanatory Markdown and links; run the notebook validation.
examples/Assistants_API_overview_python.ipynb and examples/Creating_slides_with_Assistants_API_and_DALL-E3.ipynb use client.beta.assistants and client.beta.threads. The Assistants API shuts down on August 26, 2026, so this is urgent. Official OpenAI documentation (https://platform.openai.com/docs/assistants/deep-dive/run-lifecycle%23.webm)
Acceptance criteria: replace Assistants/Threads/Runs with Responses API patterns; preserve tool-use and slide-
generation behavior; update explanatory Markdown and links; run the notebook validation.