rewrite readmes and fix docker compose #7

	name: Deploy Backend to Heroku

	on:
	push:
	branches: [main]
	paths:
	- "backend/**"
	- ".github/workflows/deploy-backend.yml"

	jobs:
	deploy-backend:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Detect backend changes
	id: changes
	uses: dorny/paths-filter@v3
	with:
	token: ${{ github.token }}
	filters: \|
	backend:
	- 'backend/Dockerfile'
	- 'backend/Cargo.toml'
	- 'backend/Cargo.lock'
	- 'backend/src/**'
	- 'backend/migrations/**'
	- 'backend/rustfmt.toml'

	- name: Install Heroku CLI
	run: \|
	curl https://cli-assets.heroku.com/install.sh \| sh
	if: steps.changes.outputs.backend == 'true'

	- name: Heroku Container Registry login
	env:
	HEROKU_EMAIL: ${{ secrets.HEROKU_EMAIL }}
	HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}
	run: \|
	echo "$HEROKU_API_KEY" \| docker login -u "$HEROKU_EMAIL" --password-stdin registry.heroku.com
	if: steps.changes.outputs.backend == 'true'

	- name: Build and push (linux/amd64)
	env:
	HEROKU_BACKEND_APP: ${{ secrets.HEROKU_BACKEND_APP }}
	run: \|
	DOCKER_BUILDKIT=0 docker build \
	--platform linux/amd64 \
	--target production \
	-t registry.heroku.com/${HEROKU_BACKEND_APP}/web \
	-f backend/Dockerfile backend

	docker push registry.heroku.com/${HEROKU_BACKEND_APP}/web
	if: steps.changes.outputs.backend == 'true'

	- name: Release on Heroku
	env:
	HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}
	HEROKU_BACKEND_APP: ${{ secrets.HEROKU_BACKEND_APP }}
	run: \|
	heroku container:release web -a "${HEROKU_BACKEND_APP}"
	if: steps.changes.outputs.backend == 'true'

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