Make Anchor's public claims real end-to-end (sources[], migration, seed, docker, docs) #14

	name: Docker

	# Standalone image build check. Verifies the Dockerfile builds the real
	# Next.js standalone app end to end. CI (ci.yml) also runs a compose smoke
	# test; this job keeps the image build green on its own.

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

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

	jobs:
	build:
	name: Build image
	runs-on: ubuntu-latest
	timeout-minutes: 12
	steps:
	- uses: actions/checkout@v4

	- uses: docker/setup-buildx-action@v3

	- name: Build anchor:test
	uses: docker/build-push-action@v6
	with:
	context: .
	push: false
	load: true
	tags: anchor:test
	cache-from: type=gha
	cache-to: type=gha,mode=max

	- name: Confirm image exists
	run: docker image inspect anchor:test --format 'built {{.Id}} ({{.Size}} bytes)'

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