Pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	pin	v6 → v6.1.0
anthropic	project.dependencies	pin	>=0.100.0 → ==0.100.0
astral-sh/setup-uv	action	pin	v7 → v7.6.0
httpx (changelog)	project.dependencies	pin	>=0.28.1 → ==0.28.1
openai	project.dependencies	pin	>=2.36.0 → ==2.36.0
poethepoet (changelog)	dependency-groups	pin	>=0.45.0 → ==0.45.0
pytest (changelog)	dependency-groups	pin	>=9.0.3 → ==9.0.3
pytest-cov (changelog)	dependency-groups	pin	>=7.1.0 → ==7.1.0
python (source)	requires-python	pin	>=3.13 → ==3.15.0
python-dotenv	project.optional-dependencies	pin	>=1.0.0 → ==1.2.2
pyyaml (source)	project.dependencies	pin	>=6.0.3 → ==6.0.3
questionary	project.dependencies	pin	>=2.1.1 → ==2.1.1
rich	project.dependencies	pin	>=15.0.0 → ==15.0.0
ruff (source, changelog)	dependency-groups	pin	>=0.15.12 → ==0.15.12
ty (changelog)	dependency-groups	pin	>=0.0.34 → ==0.0.34
typer (changelog)	project.dependencies	pin	>=0.25.1 → ==0.25.1
uv_build (source, changelog)	build-system.requires	pin	>=0.11.3,<0.12 → ==0.11.33

Add the preset :preserveSemverRanges to your config if you don't want to pin your dependencies.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: uv.lock

Using CPython 3.14.8
error: The Python request from `.python-version` resolved to Python 3.14.8, which is incompatible with the project's Python requirement: `==3.15.0` (from `project.requires-python`)
Use `uv python pin` to update the `.python-version` file to a compatible version