Detect proper avatar type to return instead of returning image/* #508

	name: backend

	on:
	push:
	branches:
	tags:
	paths:
	- ".github/workflows/ci-test-backend.yml"
	- "backend/**"
	- "!backend/scripts/**"
	- "!**.md"
	pull_request:
	types: [opened, reopened]
	paths:
	- ".github/workflows/ci-test-backend.yml"
	- "backend/**"
	- "!backend/scripts/**"
	- "!**.md"
	jobs:
	test:
	name: Test & Coverage
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: debug if needed
	run: if [[ "$DEBUG" == "true" ]]; then env; fi
	env:
	DEBUG: ${{secrets.DEBUG}}

	- name: install go
	uses: actions/setup-go@v5
	with:
	go-version: "1.21"

	- name: test and build backend
	run: \|
	go test -race -timeout=60s -covermode=atomic -coverprofile=$GITHUB_WORKSPACE/profile.cov_tmp ./...
	cat $GITHUB_WORKSPACE/profile.cov_tmp \| grep -v "_mock.go" > $GITHUB_WORKSPACE/profile.cov
	go build -race ./...
	working-directory: backend/app
	env:
	TZ: "America/Chicago"

	- name: test examples
	run: \|
	go test -race ./...
	go build -race ./...
	working-directory: backend/_example/memory_store
	env:
	TZ: "America/Chicago"

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	version: v1.58
	working-directory: backend/app

	- name: golangci-lint on example directory
	uses: golangci/golangci-lint-action@v3
	with:
	version: v1.58
	args: --config ../../.golangci.yml
	working-directory: backend/_example/memory_store

	- name: submit coverage
	run: \|
	go install github.com/mattn/goveralls@latest
	goveralls -service="github" -coverprofile=$GITHUB_WORKSPACE/profile.cov
	working-directory: backend
	env:
	COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Provide feedback