chore(deps): Update remaining dependencies (closes #43, #50, #51)

[jefrnc]

Summary

Applies the 3 remaining dependabot updates that had merge conflicts:

• pytest-asyncio 1.1 → 1.2 (closes chore(deps-dev): Update pytest-asyncio requirement from ==1.1.* to ==1.2.* #43)
• fastapi 0.116 → 0.120 (closes chore(deps): Update fastapi requirement from ==0.116.* to ==0.120.* #51)
• Python 3.13 → 3.14 (closes chore(deps): Bump python from 3.13-slim-bookworm to 3.14-slim-bookworm #50)

Test plan

• CI pipeline passes (tests + docker build)

[Copilot]

Pull request overview

This PR resolves outstanding Dependabot merge conflicts by updating pinned dependency versions and bumping the Docker base image Python version used for the runtime container.

Changes:

• Bump fastapi from 0.116.* → 0.120.* in requirements.txt.
• Bump pytest-asyncio from 1.1.* → 1.2.* in requirements-dev.txt.
• Bump Docker base image from python:3.13-slim-bookworm → python:3.14-slim-bookworm.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 2 comments.

File	Description
requirements.txt	Updates the FastAPI pin to the newer minor version.
requirements-dev.txt	Updates the pytest-asyncio pin for dev/test tooling.
Dockerfile	Moves the runtime container to Python 3.14.

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[Copilot]

With the base image bumped to Python 3.14, the build should fail if requirements installation fails. The Dockerfile currently ignores pip install -r /tmp/requirements.txt failures (|| true), which can produce an image missing runtime dependencies and make Python-version incompatibilities hard to detect. Remove the || true (or otherwise handle failures explicitly) so dependency install errors fail the build.

[Copilot]

CI currently uses Python 3.9 in GitHub Actions workflows, while the runtime Docker image is being bumped to Python 3.14. To reduce risk of runtime-only breakages, consider adding CI coverage for 3.14 (or a version matrix including 3.14) and/or a job that builds the Docker image as part of the PR checks.

Suggested change

	FROM python:3.14-slim-bookworm
	FROM python:3.9-slim-bookworm