Here is a summary of the meetings and discussions among the characters in Catville for the day November 26th:

1. Andy and Mei met at the library to discuss their AI music project. They decided to meet under the oak tree on Thursday at 2 PM and have lunch together afterwards.

2. Peter rescheduled his meeting with Samantha for today and moved their AI discussion to Caroline's Café instead. They also planned a double date under the oak tree this weekend at 3 PM.

3. Noor agreed to meet Peter at Caroline's Café right now for their AI project discussion. They will bring coffee, ideas, and laptops.

4. Peter also discussed having vegan street tacos with Diego after their meeting next week at Caroline's Café on Tuesday at 3 PM.

5. Mei mentioned that she has been working on new musical ideas for the AI music project and suggested they catch up Thursday under the oak tree at 2 PM.

6. Leo was not involved in any meetings or discussions but is expected to be present during a double date under the oak tree this weekend with Peter, Noor, and possibly Diego.

7. Samantha did not have a meeting scheduled for today but plans to meet with Andy in the future for their AI project discussions.

8. Caroline was not involved in any meetings or discussions but is the owner of Caroline's Café, where several meetings are planned to take place over the next few days. She also recommended vegan street tacos to Diego.

9. Diego and Peter met at the theater and discussed AI project progress as well as their meeting scheduled for next Tuesday at Caroline's Café. They also talked about vegan street tacos.

10. Mei was at the gym during the day but will meet Andy under the oak tree on Thursday at 2 PM for their AI music project discussions and lunch together afterwards.

11. Andy and Noor both plan to be at Caroline's Café in the near future, with Andy meeting Peter today for their AI project discussion, and Noor planning to attend a double date under the oak tree this weekend with Peter and possibly Diego.