[codex] add reviewed parallel worktree starter #73

	name: CI

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

	env:
	CARGO_TERM_COLOR: always
	RUSTFLAGS: "-D warnings"

	jobs:
	gate:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v6
	- name: Install Rust toolchain
	uses: dtolnay/rust-toolchain@stable
	with:
	components: clippy
	- name: Install Node (odw selftest runs under cargo test)
	uses: actions/setup-node@v6
	with:
	node-version: 20
	- name: Cache cargo
	uses: actions/cache@v5
	with:
	path: \|
	~/.cargo/registry
	~/.cargo/git
	target
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	- name: Build (both crates)
	run: cargo build --locked --all-targets
	- name: Test (includes odw parity selftest)
	run: cargo test --locked
	- name: Clippy (warnings = errors)
	run: cargo clippy --all-targets -- -D warnings

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