Synced from monorepo

Changes:
- Detect the herdr multiplexer
- Mark /gboom as non-production code
- Bound peak memory when loading a large session
- Add a subagent lifecycle soak bounding threads, fds, and heap
- Stream inherited replay to bound fork memory
- Copy full plan from plan approval with y
- Stop armed signature verification from deleting the managed-deny smoke policy
- Add source-tagged terminal version telemetry
- Show the UI instantly and fetch models and settings in the background
- Session test helpers
- computer_reason on the ConversationHistoryDone trailer

crates/codegen/xai-grok-pager/src/app/effects/mod.rs

@@ -4219,10 +4219,11 @@ pub(crate) fn execute(
                                         .to_owned()
                                 });
                             xai_grok_shell::remote::fetch_settings_blocking(
-                                &proxy_base,
-                                &auth,
-                                None,
-                            )
+                                    &proxy_base,
+                                    &auth,
+                                    None,
+                                )
+                                .into_option()
                         })
                         .await
                         .ok()