enh: Refactor `Event` -> `Message` pipeline outside of `CodeActAgent` #17372

	# Workflow that uses the DummyAgent to run a simple task
	name: Run E2E test with dummy agent

	# Always run on "main"
	# Always run on PRs
	on:
	push:
	branches:
	- main
	pull_request:

	# If triggered by a PR, it will be in the same group. However, each commit on main will be in its own unique group
	concurrency:
	group: ${{ github.workflow }}-${{ (github.head_ref && github.ref) \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v3
	- name: Install tmux
	run: sudo apt-get update && sudo apt-get install -y tmux
	- name: Install poetry via pipx
	run: pipx install poetry
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'
	cache: 'poetry'
	- name: Install Python dependencies using Poetry
	run: poetry install --without evaluation,llama-index
	- name: Build Environment
	run: make build
	- name: Run tests
	run: \|
	set -e
	SANDBOX_FORCE_REBUILD_RUNTIME=True poetry run python3 openhands/core/main.py -t "do a flip" -d ./workspace/ -c DummyAgent
	- name: Check exit code
	run: \|
	if [ $? -ne 0 ]; then
	echo "Test failed"
	exit 1
	else
	echo "Test passed"
	fi

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