"enemy of my friend" feature and total refactor #48

	name: Build and test

	on:
	push:
	branches: [ main, dev ]
	pull_request:
	branches: [ main, dev ]
	workflow_dispatch:

	jobs:
	build_and_test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Build
	run: \|
	cargo build
	- name: Run tests
	run: \|
	cargo test
	memory_consumption:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Build
	run: \|
	cargo build --release
	- name: Run tests
	run: \|
	export MEM_KB=`/usr/bin/time -f "%M" cargo test smoke_memory --release --quiet 2>&1 1>/dev/null`
	if [ $MEM_KB -gt 300000 ]; then
	exit 1
	fi

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