fix: refresh tui header after rate limit polls

Author: Loongphy

.agents/skills/status-header-colors/SKILL.md

@@ -77,3 +77,6 @@ if let Some(summary) = self.rate_limit_summary.as_ref() {
 - Only change colors if this skill explicitly instructs it; do not introduce new colors.
 - Keep the separator as dim to avoid competing with the segments.
 - Prefer the exact icon codes shown above unless the feature removes a segment entirely.
+- If a status-header segment depends on background-polled or async state (for example rate-limit
+  data fetched from `/usage`), the update path must explicitly request a redraw/frame after the
+  cached state changes so the header updates while the UI is otherwise idle.

codex-rs/tui/src/chatwidget.rs

@@ -1700,6 +1700,9 @@ impl ChatWidget {
             self.rate_limit_snapshots_by_limit_id.clear();
         }
         self.refresh_status_line();
+        // Rate-limit polling happens off the main turn stream, so request a frame explicitly
+        // to keep header/status surfaces in sync while the UI is otherwise idle.
+        self.request_redraw();
     }
 
     pub(crate) fn on_git_status_update(&mut self, summary: Option<GitStatusSummary>) {