Port to 3.12

[pamelafox]

Purpose

This pull request updates the project to use Python 3.12 as the default version across development, Docker, and CI environments, and expands CI testing to include Python 3.14.

Does this introduce a breaking change?

[ ] Yes
[X] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[X] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Open in Dev Container, run notebook
• Run azd up, app should work

[Copilot]

Pull Request Overview

This pull request updates the project to use Python 3.12 as the default version across all environments, replacing Python 3.11 in Docker, development container, and notebook configurations.

• Updated Python version from 3.11 to 3.12 in Docker base image and library paths
• Updated development container to use Python 3.12 image
• Updated notebook metadata to reflect Python 3.12.11 version

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/Dockerfile	Updated base image and library copy path from Python 3.11 to 3.12
.devcontainer/devcontainer.json	Updated development container image from Python 3.11 to 3.12
notebooks/chat_vision.ipynb	Updated notebook metadata version from 3.11.10 to 3.12.11

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[madebygps]

lgtm!