chore(#1474): add reason= to remaining bare clippy allows outside dashboard

hive-c0re/src/manager_server.rs

@@ -74,7 +74,11 @@ async fn serve(stream: UnixStream, coord: Arc<Coordinator>) -> Result<()> {
     }
 }
 
-#[allow(clippy::too_many_lines)]
+#[allow(
+    clippy::too_many_lines,
+    reason = "flat dispatch table: one match arm per manager-socket request \
+              variant; splitting it would scatter the routing logic"
+)]
 async fn dispatch(req: &ManagerRequest, coord: &Arc<Coordinator>) -> ManagerResponse {
     // Delegate all variants shared with the agent socket to the common handler.
     if let Some(resp) = crate::agent_server::dispatch_shared(req, MANAGER_AGENT, coord).await {
@@ -664,7 +668,11 @@ async fn handle_fire_schedule_now(
 /// zero-interval validation. Returns `Ok` on a clean update;
 /// `Err` with the underlying message on any auth / validation
 /// failure so the dashboard can surface it verbatim.
-#[allow(clippy::too_many_arguments)]
+#[allow(
+    clippy::too_many_arguments,
+    reason = "args mirror the edit-schedule PATCH fields 1:1; bundling them into \
+              a struct used only here adds no clarity"
+)]
 #[allow(
     clippy::option_option,
     reason = "double-Option carries three-state PATCH semantics: outer None = \