fix(tui): retain update notice in the metrics line

Show a quiet available-version notice on the normal and empty-session metrics line, without replacing permission or remote-control status. A staged unsigned update no longer claims it is ready. Existing hidden/mini/pet layouts remain unchanged and the notice is display-only; /update remains the action.

Refs #7136. Verified on the frozen Linux source export: the existing empty-session render and status-item coverage checks passed (2 passed, 0 failed; 13,924 filtered in each). rustfmt and diff checks passed. First VM test attempt was killed at its memory limit; the one-job retry with swap passed. No installed binary, real update check, clickable control, or hosted CI was verified. Read-only design review by Claude.

crates/tui/src/tui/app.rs

@@ -1669,9 +1669,9 @@ pub struct App {
     pub status_message: Option<String>,
     /// Recent status toasts (ephemeral, newest at back).
     pub status_toasts: VecDeque<StatusToast>,
-    /// Header chip label (e.g. `↑ v0.9.5`) set once by the fire-and-forget
+    /// Metrics-line label (e.g. `↑ v0.9.5`) set once by the fire-and-forget
     /// startup version check when a newer stable release exists. Drives the
-    /// small persistent update chip in the header so the affordance survives
+    /// persistent update notice so the affordance survives
     /// the transient toast without nagging (FINISH-0.9.4 #14).
     pub update_available: Option<String>,
     /// Sticky status toast used for important warnings/errors.

crates/tui/src/tui/infoline.rs

@@ -27,13 +27,13 @@
 //! and at every fullness, not only from 50% up (#5950).
 //!
 //! Shed order as width drops: cache, output count and billing tier, the help
-//! hint, then rate and TTFT, then cost and balance
+//! hint, then rate and TTFT, then cost and balance, followed by goal and update
 //! ([`InfoSegmentId::shed_priority`]). The model and `ctx NN%` never shed; below that floor the row clips at its
 //! right edge.
 //!
-//! Which segments exist at all is the user's call: `/statusline` and
-//! `tui.status_items` compose the row, and [`crate::tui::ui::frame::info_segments`]
-//! builds only the ones that are on. Shedding decides what survives the
+//! `/statusline` and `tui.status_items` select the session metrics;
+//! [`crate::tui::ui::frame::info_segments`] also includes an active goal or
+//! an available-update notice. Shedding decides what survives the
 //! width that is left. `tui.metrics_line` sizes the row (#5950): `hidden`
 //! gives the line back to the transcript, and `compact` starts the shed
 //! pass with secondary counts and the help hint already gone; TTFT and rate

crates/tui/src/tui/ui.rs

@@ -1445,11 +1445,11 @@ impl UpdateNotice {
         )
     }
 
-    /// Compact header chip label shown once the check has landed. Quiet by
+    /// Compact metrics-line label shown once the check has landed. Quiet by
     /// design: no action verb, no repetition — the toast and transcript
     /// notice carry the update instructions (#14).
     fn chip_label(&self) -> String {
-        if self.staged.is_some() {
+        if self.staged == Some(true) {
             format!("↑ v{latest} ready", latest = self.latest)
         } else {
             format!("↑ v{latest}", latest = self.latest)

crates/tui/src/tui/ui/event_loop.rs

@@ -2239,7 +2239,7 @@ pub(crate) async fn run_event_loop(
             // Transient toast for immediate visibility, plus a durable
             // in-transcript notice so the prompt survives the toast TTL and
             // stays actionable during a busy session (#3961). The persistent
-            // header chip keeps a quiet affordance after both (#14).
+            // metrics-line notice keeps a quiet affordance after both (#14).
             // Which command to advertise depends on who owns this binary on
             // disk, so resolve that here rather than hardcoding our own
             // updater into the wording.

crates/tui/src/tui/ui/frame.rs

@@ -72,10 +72,9 @@ fn output_tokens(app: &App) -> Option<u64> {
 /// the git bottom view own them. Fleet, whale and automation counts left too —
 /// the posture bar's live counts own activity.
 ///
-/// Composition is the user's (#5950): every segment here is gated on the
-/// matching [`StatusItem`] in `app.status_items`, which is what `/statusline`
-/// edits and `tui.status_items` persists. Between 0.9.12 and this change the
-/// row ignored that list entirely and the picker's toggles did nothing.
+/// Session metrics follow the matching [`StatusItem`] in `app.status_items`,
+/// which `/statusline` edits and `tui.status_items` persists. The active goal
+/// and available-update notice follow their own live state.
 pub(crate) fn info_segments(app: &App, width: u16) -> Vec<InfoSegment> {
     use codewhale_localization::MessageId;
     use codewhale_palette::ChromeInk;
@@ -325,6 +324,15 @@ pub(crate) fn info_segments(app: &App, width: u16) -> Vec<InfoSegment> {
         }
     }
 
+    if let Some(label) = app.update_available.as_deref() {
+        segments.push(InfoSegment::new(
+            InfoSegmentId::Update,
+            "",
+            label,
+            ChromeInk::Info,
+        ));
+    }
+
     segments
 }
 
@@ -418,10 +426,9 @@ fn split_route_hitbox(
 }
 
 /// Render the info line into its one row and record its segment
-/// hitboxes (spec §5b `Constraint::Length(1)`). The ONE header on every
-/// screen: the session shell and the launch screen both call this, so the
-/// brand lockup, contextual segments, and the pinned meter + clock never
-/// change identity between pre- and post-session states. Segment rects are
+/// hitboxes (spec §5b `Constraint::Length(1)`). The session shell and launch
+/// screen both use this row, keeping the visible identity and notice facts
+/// consistent between pre- and post-session states. Segment rects are
 /// recorded for hover (this frame's highlight resolves against the previous
 /// frame's rects, the standard one-frame-lag registry pattern) and for typed
 /// click routing.
@@ -446,7 +453,10 @@ fn render_info_row(
         segments.retain(|segment| {
             matches!(
                 segment.id,
-                InfoSegmentId::Model | InfoSegmentId::Workspace | InfoSegmentId::GitBranch
+                InfoSegmentId::Model
+                    | InfoSegmentId::Workspace
+                    | InfoSegmentId::GitBranch
+                    | InfoSegmentId::Update
             )
         });
     }
@@ -3019,9 +3029,8 @@ mod tests {
         }
     }
 
-    /// Every remaining status item owns a segment, and an empty list leaves
-    /// the row with nothing but the help hint — no toggle in `/statusline`
-    /// paints something no toggle can remove.
+    /// Every selected status item owns its segment; without live notices an
+    /// empty list leaves the metrics line empty.
     #[test]
     fn every_metrics_segment_answers_to_a_status_item() {
         let mut app = app_with_context_percent(60);
@@ -3070,6 +3079,7 @@ mod tests {
         app.workspace = std::path::PathBuf::from("/fixture/checkout");
         app.workspace_context = Some("feature-6112 | clean".to_string());
         app.status_items = vec![StatusItem::Workspace, StatusItem::GitBranch];
+        app.update_available = Some("↑ v9.9.9".to_string());
         app.metrics_line = codewhale_runtime::config::ChromeRowPreset::Compact;
         let backend = ratatui::backend::TestBackend::new(100, 1);
         let mut terminal = ratatui::Terminal::new(backend).unwrap();
@@ -3088,6 +3098,15 @@ mod tests {
             .collect();
         assert!(rendered.contains("checkout"), "{rendered}");
         assert!(rendered.contains("feature-6112"), "{rendered}");
+        assert!(rendered.contains("v9.9.9"), "{rendered}");
+        let mut notice = super::super::UpdateNotice {
+            current: "0.10.1".to_string(),
+            latest: "0.10.2".to_string(),
+            staged: Some(false),
+        };
+        assert_eq!(notice.chip_label(), "↑ v0.10.2");
+        notice.staged = Some(true);
+        assert_eq!(notice.chip_label(), "↑ v0.10.2 ready");
     }
 
     /// #6112: the opt-in workspace and branch chips read cached state only —

vendor/codewhale-ratatui/src/components/posture.rs

@@ -469,6 +469,7 @@ pub enum MetricKind {
     Goal,
     Workspace,
     GitBranch,
+    Update,
 }
 
 impl MetricKind {
@@ -482,7 +483,7 @@ impl MetricKind {
             Self::Rate | Self::Ttft | Self::Cost => 5,
             Self::OutputTokens | Self::BillingTier => 7,
             Self::Balance | Self::Workspace | Self::GitBranch => 4,
-            Self::Goal => 3,
+            Self::Goal | Self::Update => 3,
             Self::Model | Self::Context => 0,
         }
     }