refactor(main): decompose CLI, path, and systemd helpers #38

	name: CI

	on:
	push:
	branches:
	- "**"
	pull_request:
	branches:
	- "**"

	jobs:
	build-and-test:
	runs-on: ubuntu-latest
	env:
	CARGO_INCREMENTAL: 0

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

	- name: Install Rust toolchain
	uses: dtolnay/rust-toolchain@stable
	with:
	components: rustfmt, clippy

	- name: Cache cargo directories
	uses: Swatinem/rust-cache@v2
	with:
	shared-key: ubuntu-stable
	save-if: ${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}

	- name: Verify dev manifest version
	run: \|
	expected_version="0.0.0"
	actual_version="$(sed -nE 's/^version = "([^"]+)"/\1/p' Cargo.toml)"
	if [ "$actual_version" != "$expected_version" ]; then
	echo "Cargo.toml version must stay at $expected_version on branches; found $actual_version" >&2
	echo "Use a vX.Y.Z git tag to define release version in release workflow." >&2
	exit 1
	fi

	- name: Check formatting
	run: cargo fmt --all -- --check

	- name: Run clippy
	run: cargo clippy --locked --all-targets -- -D warnings

	- name: Build
	run: cargo build --locked --verbose

	- name: Run tests
	run: cargo test --locked --verbose

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