`script/dev-node.sh` fetches the v1.0.1 release binary once into `.cache/`,
checks it against the sha256 the release publishes, and runs
`quantus-node --dev` on a throwaway base path. The workflow starts it in
the background, waits for `system_chain` to answer `Quantus DevNet`, and
runs every ignored test whose name says `dev_node`: the send, reverse,
cancel and named-failure path, and the scheme-by-era probe that found the
mortality bug. Public-node tests stay ignored in CI.
Rehearsed locally on a second node on port 9955: both tests pass in 15 s.
Closes#24
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014ftBXYuba8ARhQeF74oUgW
