`apps/vectorcraft/tests/it/help.rs` gave the desktop binary 5 seconds
to exit and otherwise reported that the app had started. While
`cargo xtask ci` runs the workspace's tests in parallel, starting the
binary can take longer than that, and both help tests failed although
the binary printed its usage.
The test now reads standard output and standard error to their end on
threads and waits up to 120 seconds for them. It also sets
`VECTORCRAFT_CONTROL_PORT` to a value the app rejects, so a binary that
does not stop at `--help` exits with that error instead of opening a
window, and the usage checks fail.
* CI: line tables only for workspace crates, no debug info for dependencies
* CI: one integration-test binary per crate
Each crate's tests/*.rs files become modules of tests/it/main.rs. Files that change
process-wide state (Color Settings, the font database, installed plug-ins, the working
directory), the fuzz sweeps and the test targets the Affinity corpus workflow names stay
their own binaries.
* Docs: name the integration tests' new paths
* CI: xtask test with nextest and doctests, one wasm check, clippy --keep-going
cargo xtask ci runs the tests with cargo nextest (cargo test when it is not installed),
builds them with --lib --bins --tests, runs the doctests as their own step, and checks
the wasm crates in one cargo check --keep-going call.