Add CI workflow for building and testing the app #3

	---
	on:
	push:
	branches:
	- master
	pull_request:
	jobs:
	build-app:
	name: Build app
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository
	uses: actions/checkout@v4
	with:
	submodules: true

	- name: Validate gradle wrapper checksum
	uses: gradle/actions/wrapper-validation@v3

	- name: Set up JDK 21
	uses: actions/setup-java@v4
	with:
	distribution: 'temurin'
	java-version: 21
	cache: gradle

	- name: Set up Go
	uses: actions/setup-go@v5

	- name: Install gomobile
	run: go install golang.org/x/mobile/cmd/gomobile@latest

	- name: Get NDK version
	id: get_version
	shell: bash
	run: \|
	sed -nr 's/^\s(ndkVersion)\s(=)\s"(.+)".*$/\1\2\3/p' \
	app/build.gradle.kts \
	>> "${GITHUB_OUTPUT}"

	- name: Build and test
	uses: reactivecircus/android-emulator-runner@v2
	with:
	api-level: 34
	arch: x86_64
	ndk: ${{ steps.get_version.outputs.ndkVersion }}
	# Debug build only since release builds require a signing key
	script: ./gradlew --no-daemon build -x assembleRelease

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