Refresh live environment #741

	name: Refresh live environment

	on:
	schedule:
	# Hourly, at :17 past the hour (UTC). Buoys report ~hourly; offset avoids
	# the top-of-hour cron rush.
	- cron: "17 * * * *"
	workflow_dispatch:

	permissions:
	contents: write

	concurrency:
	group: live-environment
	cancel-in-progress: true

	jobs:
	refresh:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v6

	- uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Fetch latest environmental observations
	run: python3 scripts/build_live_temperature.py

	- name: Commit snapshot if changed
	run: \|
	if git diff --quiet -- src/data/liveTemperature.json; then
	echo "No change in liveTemperature.json"
	exit 0
	fi
	git config user.name "github-actions[bot]"
	git config user.email "github-actions[bot]@users.noreply.github.com"
	git add src/data/liveTemperature.json
	git commit -m "Refresh live environmental snapshot"
	git push

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