Remeasure dynamic cells in the transcript overlay (#34232)

## Why

The transcript overlay cached every committed cell's height. Cells whose content changes after insertion, such as refreshed status output or newly available visualizations, could outgrow that cached height and be clipped.

## What changed

- Let history cells declare whether their transcript height is stable, and remeasure dynamic cells on later overlay renders.
- Preserve cached heights for stable cells when appending a committed cell instead of rebuilding all renderables.

## Testing

- Cover status output growing after a rate-limit refresh.
- Cover a visualization link replacing its unavailable placeholder.
- Verify that appending a cell preserves cached measurements for stable cells.

GitOrigin-RevId: 03e7166cb94d7353c9b89bff8abb3b7ccb84a6bb

codex-rs/tui/src/status/snapshots/codex_tui__status__tests__transcript_overlay_status_rate_limit_refresh.snap

@@ -0,0 +1,66 @@
+---
+source: tui/src/status/tests.rs
+expression: "format!(\"before:\\n{before}\\n\\nafter:\\n{after}\")"
+---
+before:
+/ T R A N S C R I P T / / / / / / / / / / / / / / / / / / / / / / / / / / / / /
+/status
+
+╭──────────────────────────────────────────────────────────────────────────╮
+│  >_ OpenAI Codex (v0.0.0)                                                │
+│                                                                          │
+│ Visit https://chatgpt.com/codex/settings/usage for up-to-date            │
+│ information on rate limits and credits                                   │
+│                                                                          │
+│  Model:         gpt-5.1-codex-max (reasoning none, summaries auto)       │
+│  Directory: [[workspace]]                                                │
+│  Permissions:   Custom (workspace with network access, Ask for approval) │
+│  Agents.md:     <none>                                                   │
+│                                                                          │
+│  Token usage:   0 total  (0 input + 0 output)                            │
+│  Limits:        refresh requested; run /status again shortly.            │
+╰──────────────────────────────────────────────────────────────────────────╯
+~
+~
+~
+~
+~
+~
+~
+~
+~
+───────────────────────────────────────────────────────────────────────── 100% ─
+ ↑/↓ to scroll   pgup/pgdn to page   home/end to jump
+ q to quit   esc to edit prev
+
+
+after:
+/ T R A N S C R I P T / / / / / / / / / / / / / / / / / / / / / / / / / / / / /
+/status
+
+╭───────────────────────────────────────────────────────────────────────────╮
+│  >_ OpenAI Codex (v0.0.0)                                                 │
+│                                                                           │
+│ Visit https://chatgpt.com/codex/settings/usage for up-to-date             │
+│ information on rate limits and credits                                    │
+│                                                                           │
+│  Model:          gpt-5.1-codex-max (reasoning none, summaries auto)       │
+│  Directory: [[workspace]]                                                 │
+│  Permissions:    Custom (workspace with network access, Ask for approval) │
+│  Agents.md:      <none>                                                   │
+│                                                                           │
+│  Token usage:    0 total  (0 input + 0 output)                            │
+│  spark limit:                                                             │
+│  5h limit:       [███████████░░░░░░░░░] 55% left (resets soon)            │
+│  Weekly limit:   [██████████████░░░░░░] 70% left (resets later)           │
+╰───────────────────────────────────────────────────────────────────────────╯
+
+next message
+~
+~
+~
+~
+~
+───────────────────────────────────────────────────────────────────────── 100% ─
+ ↑/↓ to scroll   pgup/pgdn to page   home/end to jump
+ q to quit   esc to edit prev

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

@@ -8,9 +8,12 @@ use super::rate_limits::SpendControlLimitSnapshotDisplay;
 use super::rate_limits::StatusRateLimitData;
 use super::rate_limits::compose_rate_limit_data_many;
 use crate::history_cell::HistoryCell;
+use crate::history_cell::PlainHistoryCell;
+use crate::keymap::RuntimeKeymap;
 use crate::legacy_core::config::Config;
 use crate::legacy_core::config::ConfigBuilder;
 use crate::legacy_core::config::PermissionProfileSnapshot;
+use crate::pager_overlay::TranscriptOverlay;
 use crate::status::StatusAccountDisplay;
 use crate::status::remote_connection::RemoteConnectionStatus;
 use crate::test_support::PathBufExt;
@@ -52,6 +55,7 @@ use codex_utils_absolute_path::AbsolutePathBuf;
 use insta::assert_snapshot;
 use pretty_assertions::assert_eq;
 use ratatui::prelude::*;
+use std::sync::Arc;
 use tempfile::TempDir;
 use unicode_width::UnicodeWidthStr;
 
@@ -206,6 +210,28 @@ fn sanitize_directory(lines: Vec<String>) -> Vec<String> {
         .collect()
 }
 
+fn buffer_to_text(buffer: &Buffer, width: u16) -> String {
+    let lines = buffer
+        .content
+        .chunks(usize::from(width))
+        .map(|row| {
+            row.iter()
+                .map(|cell| {
+                    let symbol = cell.symbol();
+                    symbol
+                        .strip_prefix("\x1b]8;;")
+                        .and_then(|symbol| symbol.split_once('\x07'))
+                        .and_then(|(_, symbol)| symbol.strip_suffix("\x1b]8;;\x07"))
+                        .unwrap_or(symbol)
+                })
+                .collect::<String>()
+                .trim_end()
+                .to_string()
+        })
+        .collect::<Vec<_>>();
+    sanitize_directory(lines).join("\n")
+}
+
 fn reset_at_from(captured_at: &chrono::DateTime<chrono::Local>, seconds: i64) -> i64 {
     (*captured_at + ChronoDuration::seconds(seconds))
         .with_timezone(&Utc)
@@ -1666,6 +1692,89 @@ async fn status_snapshot_shows_refreshing_limits_notice() {
     assert_snapshot!(sanitized);
 }
 
+#[tokio::test]
+async fn transcript_overlay_remeasures_status_after_rate_limit_refresh() {
+    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());
+    set_workspace_cwd(&mut config, test_path_buf("/workspace/tests").abs());
+    let usage = TokenUsage::default();
+    let now = Local
+        .with_ymd_and_hms(2024, 6, 7, 8, 9, 10)
+        .single()
+        .expect("timestamp");
+    let model_slug = get_model_offline_for_tests(config.model.as_deref());
+
+    let (status, handle) = new_status_output_with_rate_limits_handle(
+        &config,
+        /*runtime_model_provider_base_url*/ None,
+        /*remote_connection*/ None,
+        /*account_display*/ None,
+        /*token_info*/ None,
+        &usage,
+        &None,
+        /*thread_name*/ None,
+        /*forked_from*/ None,
+        /*rate_limits*/ &[],
+        None,
+        now,
+        &model_slug,
+        /*collaboration_mode*/ None,
+        /*reasoning_effort_override*/ None,
+        "<none>".to_string(),
+        /*refreshing_rate_limits*/ true,
+    );
+    let mut overlay =
+        TranscriptOverlay::new(vec![Arc::new(status)], RuntimeKeymap::defaults().pager);
+    let area = Rect::new(
+        /*x*/ 0, /*y*/ 0, /*width*/ 80, /*height*/ 30,
+    );
+    let mut buffer = Buffer::empty(area);
+    overlay.render(area, &mut buffer);
+    let before = buffer_to_text(&buffer, area.width);
+
+    handle.finish_rate_limit_refresh(
+        &[RateLimitSnapshotDisplay {
+            limit_name: "spark".to_string(),
+            captured_at: now,
+            primary: Some(RateLimitWindowDisplay {
+                used_percent: 45.0,
+                resets_at: Some("soon".to_string()),
+                window_minutes: Some(300),
+            }),
+            secondary: Some(RateLimitWindowDisplay {
+                used_percent: 30.0,
+                resets_at: Some("later".to_string()),
+                window_minutes: Some(10_080),
+            }),
+            credits: None,
+            individual_limit: None,
+        }],
+        now,
+    );
+    overlay.insert_cell(Arc::new(PlainHistoryCell::new(vec!["next message".into()])));
+    buffer = Buffer::empty(area);
+    overlay.render(area, &mut buffer);
+    let after = buffer_to_text(&buffer, area.width);
+
+    assert!(
+        after.contains("spark limit"),
+        "status output was clipped: {after:?}"
+    );
+    assert!(
+        after.contains("5h limit"),
+        "status output was clipped: {after:?}"
+    );
+    assert!(
+        after.contains("Weekly limit"),
+        "status output was clipped: {after:?}"
+    );
+    insta::assert_snapshot!(
+        "transcript_overlay_status_rate_limit_refresh",
+        format!("before:\n{before}\n\nafter:\n{after}")
+    );
+}
+
 #[tokio::test]
 async fn status_snapshot_includes_credits_and_limits() {
     let temp_home = TempDir::new().expect("temp home");