Update timeline.go #4

	name: Backend CI

	# Only run this workflow if files inside the backend directory change
	on:
	push:
	branches: [ "main" ]
	paths:
	- 'backend/**'
	pull_request:
	branches: [ "main" ]
	paths:
	- 'backend/**'

	jobs:
	build-and-test:
	runs-on: ubuntu-latest

	# Specify the working directory for all steps in this job
	defaults:
	run:
	working-directory: ./backend

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.22'
	cache-dependency-path: backend/go.sum

	- name: Download dependencies
	run: go mod download

	- name: Check formatting
	run: if [ "$(gofmt -s -l . \| wc -l)" -gt 0 ]; then exit 1; fi

	- name: Run vet (Static Analysis)
	run: go vet ./...

	- name: Build
	run: go build -v ./cmd/api

	# Once you add tests, you'll uncomment this:
	# - name: Test
	# run: go test -v ./...

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