refactor(tests): fix clippy warnings

tests/common/host.rs

@@ -0,0 +1,14 @@
+use crate::common::manifest::load_example_manifest;
+use captra::HostState;
+use ed25519_dalek::SigningKey;
+use rand::rngs::OsRng;
+
+/// Build a [`HostState`] with a fixed seed and a fresh [`SigningKey`] (`OsRng`).
+/// # Panics
+#[must_use]
+pub fn make_host_with_seed(seed: u64) -> HostState {
+    let manifest = load_example_manifest();
+    let mut csprng = OsRng;
+    let keypair = SigningKey::generate(&mut csprng);
+    HostState::new(manifest, seed, keypair)
+}