Decouple client contracts and close private role registries

crates/lazaret-client/src/private_roles.rs

@@ -0,0 +1,19 @@
+use lazaret_linux::private_role::{PrivateRole, PrivateRoleRegistry};
+use lazaret_linux::process::{PRIVATE_PROCESS_ROLE, dispatch_private_process_role};
+
+static ROLES: [PrivateRole; 1] = [PrivateRole::new(
+    PRIVATE_PROCESS_ROLE,
+    dispatch_private_process_role,
+)];
+
+pub static REGISTRY: PrivateRoleRegistry = PrivateRoleRegistry::new(&ROLES);
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn client_declares_only_process_acquisition() {
+        assert_eq!(REGISTRY.names(), [PRIVATE_PROCESS_ROLE]);
+    }
+}