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Heartbeat #268

	# Availability check for the deployed add-in.
	#
	# The host is not just where the listing points — Outlook loads
	# commands.html from it every time a message is sent. If it goes down, new
	# installs fail and the send review breaks for everyone already using the
	# add-in, with no error that reaches us. This job is how we find out before
	# a user reports it.
	#
	# GitHub disables scheduled workflows in a repository with no activity for
	# 60 days. If that happens, re-enable it from the Actions tab.

	name: Heartbeat

	on:
	schedule:
	- cron: "0 /6 * *"
	workflow_dispatch:
	inputs:
	host:
	description: "Host to check (defaults to the production host)"
	required: false
	type: string

	jobs:
	heartbeat:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up Bun
	uses: oven-sh/setup-bun@v2
	with:
	bun-version-file: .bun-version

	# A single transient network blip should not page anyone, so the
	# script retries before it calls the host down.
	- name: Check the deployed add-in
	run: bun scripts/heartbeat.js --attempts=3
	env:
	ADDIN_HOST_URL: ${{ inputs.host \|\| 'https://avishaikofun.com' }}