docs: add troubleshooting section for local setup #48

	name: CI

	on:
	pull_request:
	branches: [master]
	types: [opened, synchronize, reopened]
	push:
	branches: [master]

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

	permissions:
	contents: read

	jobs:
	changes:
	name: Detect Changes
	runs-on: ubuntu-latest
	outputs:
	backend: ${{ steps.filter.outputs.backend }}
	frontend: ${{ steps.filter.outputs.frontend }}
	steps:
	- uses: actions/checkout@v4
	- uses: dorny/paths-filter@v3
	id: filter
	with:
	filters: \|
	backend:
	- 'montage/**'
	- 'requirements.txt'
	- 'requirements.in'
	- 'setup.py'
	- 'dockerfile'
	frontend:
	- 'frontend/**'

	test-backend:
	name: Test Backend (Python)
	needs: changes
	if: needs.changes.outputs.backend == 'true'
	uses: ./.github/workflows/test-backend.yml

	lint-frontend:
	name: Lint & Build Frontend (Vue)
	needs: changes
	if: needs.changes.outputs.frontend == 'true'
	uses: ./.github/workflows/lint-frontend.yml

	ci-complete:
	name: CI Complete
	runs-on: ubuntu-latest
	needs: [test-backend, lint-frontend]
	if: always()
	steps:
	- name: Check job results
	run: \|
	for job in test-backend lint-frontend; do
	case "$job" in
	test-backend) result="${{ needs.test-backend.result }}" ;;
	lint-frontend) result="${{ needs.lint-frontend.result }}" ;;
	esac
	if [ "$result" != "success" ] && [ "$result" != "skipped" ]; then
	echo "::error::Job $job failed with result: $result"
	exit 1
	fi
	done
	echo "All CI jobs passed or were correctly skipped."

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