Docs

refactor: use backported sentinel type #789

	name: Docs

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]
	workflow_dispatch:

	permissions:
	contents: read

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	docs:
	name: Check docs
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
	with:
	persist-credentials: false
	- uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
	- run: uv sync --group docs
	# --strict turns warnings into errors, so a docs code block that fails to execute
	# at build time (e.g. a non-exec python fence disrupting a later exec="true" block)
	# fails CI instead of merging as a silent warning.
	- run: uv run mkdocs build --strict
	env:
	DISABLE_MKDOCS_2_WARNING: "true"
	NO_MKDOCS_2_WARNING: "true"
	- run: uv run python ci/check_unlinked_types.py
	continue-on-error: true

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