Fix stale /status rate limits in active TUI sessions (#16201)

Fix stale weekly limit in `/status` (#16194): /status reused the
session’s cached rate-limit snapshot, so the weekly remaining limit
could stay frozen within an active session.

With this change, we now dynamically update the rate limits after status
is displayed.

I needed to delete a few low-value test cases from the chatWidget tests
because the test.rs file is really large, and the new tests in this PR
pushed us over the 512K mandated limit. I'm working on a separate PR to
refactor that test file.

codex-rs/tui/src/status/tests.rs

@@ -1,4 +1,5 @@
 use super::new_status_output;
+use super::new_status_output_with_rate_limits;
 use super::rate_limit_snapshot_display;
 use crate::history_cell::HistoryCell;
 use crate::status::StatusAccountDisplay;
@@ -700,6 +701,70 @@ async fn status_snapshot_shows_missing_limits_message() {
     assert_snapshot!(sanitized);
 }
 
+#[tokio::test]
+async fn status_snapshot_shows_refreshing_limits_notice() {
+    let temp_home = TempDir::new().expect("temp home");
+    let mut config = test_config(&temp_home).await;
+    config.model = Some("gpt-5.1-codex-max".to_string());
+    config.cwd = PathBuf::from("/workspace/tests").abs();
+
+    let usage = TokenUsage {
+        input_tokens: 500,
+        cached_input_tokens: 0,
+        output_tokens: 250,
+        reasoning_output_tokens: 0,
+        total_tokens: 750,
+    };
+    let captured_at = chrono::Local
+        .with_ymd_and_hms(2024, 6, 7, 8, 9, 10)
+        .single()
+        .expect("timestamp");
+    let snapshot = RateLimitSnapshot {
+        limit_id: None,
+        limit_name: None,
+        primary: Some(RateLimitWindow {
+            used_percent: 45.0,
+            window_minutes: Some(300),
+            resets_at: Some(reset_at_from(&captured_at, /*seconds*/ 900)),
+        }),
+        secondary: Some(RateLimitWindow {
+            used_percent: 30.0,
+            window_minutes: Some(10_080),
+            resets_at: Some(reset_at_from(&captured_at, /*seconds*/ 2_700)),
+        }),
+        credits: None,
+        plan_type: None,
+    };
+    let rate_display = rate_limit_snapshot_display(&snapshot, captured_at);
+
+    let model_slug = codex_core::test_support::get_model_offline(config.model.as_deref());
+    let token_info = token_info_for(&model_slug, &config, &usage);
+    let composite = new_status_output_with_rate_limits(
+        &config,
+        /*account_display*/ None,
+        Some(&token_info),
+        &usage,
+        &None,
+        /*thread_name*/ None,
+        /*forked_from*/ None,
+        std::slice::from_ref(&rate_display),
+        None,
+        captured_at,
+        &model_slug,
+        /*collaboration_mode*/ None,
+        /*reasoning_effort_override*/ None,
+        /*refreshing_rate_limits*/ true,
+    );
+    let mut rendered_lines = render_lines(&composite.display_lines(/*width*/ 80));
+    if cfg!(windows) {
+        for line in &mut rendered_lines {
+            *line = line.replace('\\', "/");
+        }
+    }
+    let sanitized = sanitize_directory(rendered_lines).join("\n");
+    assert_snapshot!(sanitized);
+}
+
 #[tokio::test]
 async fn status_snapshot_includes_credits_and_limits() {
     let temp_home = TempDir::new().expect("temp home");