Add Copilot coding agent setup steps and inner loop guidance #7

	name: "Copilot Setup Steps"

	# Validate the setup steps when they change, and allow manual testing.
	on:
	workflow_dispatch:
	push:
	paths:
	- .github/workflows/copilot-setup-steps.yml
	pull_request:
	paths:
	- .github/workflows/copilot-setup-steps.yml

	jobs:
	# This job name is required — the Copilot coding agent looks for it by name.
	copilot-setup-steps:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	steps:
	- name: Checkout code
	uses: actions/checkout@v6

	# Install the exact Rust toolchain used by CI.
	- name: Install Rust toolchain
	run: \|
	curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
	\| sh -s -- --default-toolchain=1.94.0 -y
	echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"

	# Install cargo-nextest so the agent can run unit tests.
	# Keep this version in sync with NEXTEST in
	# flowey/flowey_lib_hvlite/src/_jobs/cfg_versions.rs
	- name: Install cargo-nextest
	run: \|
	curl -LsSf https://get.nexte.st/0.9.101/linux \| tar zxf - -C "$HOME/.cargo/bin"

	# Restore protoc and other build dependencies via the canonical
	# flowey pipeline. This compiles flowey_hvlite first, then downloads
	# protoc, sysroots, firmware, and test kernels.
	- name: Restore packages
	run: cargo xflowey restore-packages --no-compat-igvm

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