Add topics + Add question duplication check when updating qn #65

	# This is a basic workflow to help you get started with Actions

	name: Branch Cleanup

	# Controls when the workflow will run
	on:
	# On push @ branch
	pull_request:
	types: [closed]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	cleanup_infra:
	# Run only if PR is merged
	if: github.event.pull_request.merged == true
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	container:
	image: kimyongbeom/peerprep-actions-runner:latest
	env:
	AGE_SECRET_KEY: ${{ secrets.AGE_SECRET_KEY }}
	volumes:
	- /var/run/docker.sock:/var/run/docker.sock
	options: --privileged

	concurrency:
	# current branch
	group: ${{ github.event.pull_request.head.ref }}

	permissions: write-all

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ github.event.pull_request.head.ref }}
	- uses: ./.github/actions/container_setup

	- name: Destroy Global Infrastructure
	shell: bash
	run: cd docker_registry && make destroy

	- name: Destroy Backend
	shell: bash
	run: cd backend && make destroy

	- name: Destroy Frontend
	shell: bash
	run: . $NVM_DIR/nvm.sh && cd frontend && make destroy

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