fix all linter mistakes #61

	name: Build and push services

	on:
	push:
	branches:
	- dev

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	steps:
	# 1. Checkout repository
	- name: Checkout code
	uses: actions/checkout@v4

	# 2. Login to DockerHub
	- name: Login to DockerHub Registry
	run: echo ${{secrets.DOCKERHUB_TOKEN}} \| docker login -u ${{secrets.DOCKERHUB_USERNAME}} --password-stdin

	# 3. Build ads_service
	- name: Build and push ads_service
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./microservices/ads_service/Dockerfile
	tags: ${{secrets.DOCKERHUB_USERNAME}}/ads_service:latest
	push: true

	# 4. Build auth_service
	- name: Build and push auth_service
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./microservices/auth_service/Dockerfile
	tags: ${{secrets.DOCKERHUB_USERNAME}}/auth_service:latest
	push: true

	# 5. Build city_service
	- name: Build and push city_service
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./microservices/city_service/Dockerfile
	tags: ${{secrets.DOCKERHUB_USERNAME}}/city_service:latest
	push: true

	# 6. Build migrator
	- name: Build and push migrator
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./cmd/migrator/Dockerfile
	tags: ${{secrets.DOCKERHUB_USERNAME}}/migrator:latest
	push: true

	# 7. Build backend (main service)
	- name: Build and push backend
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./Dockerfile
	tags: ${{secrets.DOCKERHUB_USERNAME}}/backend:latest
	push: true

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