fix: resolve all clippy warnings — redundant closures, dead code, collapsible_if, needless borrow

crates/adapters/activitypub-base/src/data.rs

@@ -14,6 +14,7 @@ pub struct FederationData {
     pub(crate) domain: String,
     pub(crate) allow_registration: bool,
     pub(crate) software_name: String,
+    #[allow(dead_code)]
     pub(crate) event_publisher: Option<Arc<dyn EventPublisher>>,
 }