chore: re-add baba-is-ai demo to the bundled library

Roadmap priority: B16

Summary

Re-add the baba-is-ai demo to the bundled library. It was pulled during the v1.0.0 library submission over a config-file issue flagged in review.

Why it matters

It is one of the more research-grounded demos — it reproduces the knowing-doing gap from BALROG (arXiv:2411.13543), where LLMs score near zero on spatial puzzle games despite being able to state the correct rule. Good demonstration material and a genuine research result.

What needs to be done

1. Recover the exact reviewer note from the NetLogo-Libraries submission — the issue was an extensionless config file that did not fit the bundle conventions.
2. Rename or restructure the config so it conforms (compare demos/tests/config.txt.example and the other bundled demos).
3. Verify the demo runs against a current default model — it was built against Ollama qwen2.5:7b.
4. Re-run and confirm behaviour still reproduces the intended result.
5. Re-submit to the library bundle.

Open questions

• Is the config issue the only blocker, or were there other reviewer notes?
• Should it ship with an Ollama config (free, offline, matches the original result) or a cloud config (faster to demo)?

Start by recovering the NetLogo-Libraries reviewer note, then compare the demo's config with demos/tests/config.txt.example and configs used by other bundled demos. Verify baba-is-ai with the current default model, originally Ollama qwen2.5:7b, and re-run it to confirm the intended result. Done means the config follows bundle conventions and the demo is ready for library resubmission.