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-tools/src/implementations/grok_build/task/coordinator.rs

@@ -20,9 +20,9 @@ use tokio::sync::{mpsc, oneshot};
 
 use super::coordinator_state::{
     ActiveChild, BlockingWaiter, BufferedCompletion, ChildRecord, CompletedChild, InternalEvent,
-    ListRequest, MAX_COMPLETED_ENTRIES, PendingChild, ProgressFuture, ProgressTarget, ReplyFuture,
-    TaggedFuture, active_summary, background_at_deadline, background_if_caller_gone,
-    completed_snapshot, completion_summary, sleep_until, workflow_outstanding,
+    ListRequest, PendingChild, ProgressFuture, ProgressTarget, ReplyFuture, TaggedFuture,
+    active_summary, background_at_deadline, background_if_caller_gone, completed_snapshot,
+    completion_summary, sleep_until, workflow_outstanding,
 };
 use super::types::{
     SpawnedSubagentRef, SubagentCancelOutcome, SubagentCancelTarget, SubagentDescribeOutcome,
@@ -32,8 +32,8 @@ use super::types::{
 
 pub use super::coordinator_state::{
     ChildCompletion, ChildControl, ChildReporter, ChildRunOutput, ChildRunRequest, ChildRunner,
-    CompletionDisposition, CoordinatorConfig, LocalBoxFuture, SendBoxFuture, StartedChild,
-    SubagentProgress,
+    CompletionDisposition, CoordinatorConfig, LocalBoxFuture, MAX_COMPLETED_ENTRIES, SendBoxFuture,
+    StartedChild, SubagentProgress,
 };
 
 /// Channel-owned subagent lifecycle actor.

crates/codegen/xai-grok-tools/src/implementations/grok_build/task/coordinator_state.rs

@@ -13,7 +13,9 @@ use super::types::{
     SubagentSnapshotStatus, SubagentValidateTypeOutcome,
 };
 
-pub(super) const MAX_COMPLETED_ENTRIES: usize = 1024;
+/// Cap on retained completed-subagent entries before the oldest are evicted.
+/// Public so the subagent soak test can assert the coordinator stays bounded.
+pub const MAX_COMPLETED_ENTRIES: usize = 1024;
 pub(super) const OUTPUT_UNAVAILABLE_PLACEHOLDER: &str = "[subagent output no longer available]";
 
 pub type LocalBoxFuture<T> = Pin<Box<dyn Future<Output = T> + 'static>>;