Enable tui_app_server feature by default (#15661)

codex-rs/features/src/lib.rs

@@ -822,12 +822,8 @@ pub const FEATURES: &[FeatureSpec] = &[
     FeatureSpec {
         id: Feature::TuiAppServer,
         key: "tui_app_server",
-        stage: Stage::Experimental {
-            name: "App-server TUI",
-            menu_description: "Use the app-server-backed TUI implementation.",
-            announcement: "",
-        },
-        default_enabled: false,
+        stage: Stage::Stable,
+        default_enabled: true,
     },
     FeatureSpec {
         id: Feature::PreventIdleSleep,

codex-rs/tui/tests/suite/model_availability_nux.rs

@@ -112,6 +112,8 @@ trust_level = "trusted"
         "resume".to_string(),
         "--last".to_string(),
         "--no-alt-screen".to_string(),
+        "--disable".to_string(),
+        "tui_app_server".to_string(),
         "-C".to_string(),
         repo_root.display().to_string(),
         "-c".to_string(),

codex-rs/tui_app_server/src/app_server_session.rs

@@ -1,3 +1,5 @@
+use crate::bottom_pane::FeedbackAudience;
+use crate::status::StatusAccountDisplay;
 use codex_app_server_client::AppServerClient;
 use codex_app_server_client::AppServerEvent;
 use codex_app_server_client::AppServerRequestHandle;
@@ -84,10 +86,6 @@ use color_eyre::eyre::Result;
 use color_eyre::eyre::WrapErr;
 use std::collections::HashMap;
 use std::path::PathBuf;
-use tracing::debug;
-
-use crate::bottom_pane::FeedbackAudience;
-use crate::status::StatusAccountDisplay;
 
 pub(crate) struct AppServerBootstrap {
     pub(crate) account_auth_mode: Option<AuthMode>,
@@ -258,8 +256,8 @@ impl AppServerSession {
                 .await
             {
                 Ok(rate_limits) => app_server_rate_limit_snapshots_to_core(rate_limits),
-                Err(error) => {
-                    debug!(error = ?error, "failed to fetch rate limits during TUI bootstrap");
+                Err(err) => {
+                    tracing::warn!("account/rateLimits/read failed during TUI bootstrap: {err}");
                     Vec::new()
                 }
             }

codex-rs/tui_app_server/tests/suite/model_availability_nux.rs

@@ -112,6 +112,8 @@ trust_level = "trusted"
         "resume".to_string(),
         "--last".to_string(),
         "--no-alt-screen".to_string(),
+        "--enable".to_string(),
+        "tui_app_server".to_string(),
         "-C".to_string(),
         repo_root.display().to_string(),
         "-c".to_string(),