Fix unsettled refresh detection after workspace switching (#58381)

## Why

Workspace switching rewrites claims returned by `get_token_data()`, so comparing those tokens with the stored refresh generation can fail to recognize an unfinished ChatGPT refresh.

## What changed

Compare tokens from the current auth JSON with the unsettled refresh generation, preserving detection when workspace claims differ from the original ID token.

## Testing

Extend the refresh cancellation regression test to cover a workspace switch that retains the original ID and refresh tokens.

GitOrigin-RevId: 097311e4cdc22cde875589ef616daf60c6b8ef80

codex-rs/login/src/auth/auth_tests.rs

@@ -73,14 +73,18 @@ async fn cancelled_refresh_marks_only_started_exchanges_as_unsettled() -> anyhow
     let server = MockServer::start().await;
     let storage = FileAuthStorage::new(home.path().to_path_buf());
     let mut stored = storage.load()?.context("stored credentials")?;
-    stored
-        .tokens
-        .as_mut()
-        .context("stored tokens")?
-        .oauth_provenance = Some(AccountOAuthProvenance {
+    let tokens = stored.tokens.as_mut().context("stored tokens")?;
+    tokens.oauth_provenance = Some(AccountOAuthProvenance {
         issuer: server.uri(),
         client_id: "codex-client".into(),
     });
+    // Workspace switching retains the original ID and refresh tokens.
+    tokens.account_id = Some(WORKSPACE_ID_SECOND_ALLOWED.into());
+    tokens.access_token = fake_jwt_for_auth_file_params(&AuthFileParams {
+        openai_api_key: None,
+        chatgpt_plan_type: Some("business".into()),
+        chatgpt_account_id: Some(WORKSPACE_ID_SECOND_ALLOWED.into()),
+    })?;
     storage.save(&stored)?;
     let manager = Arc::new(
         AuthManager::new_from_auth_config(

codex-rs/login/src/auth/manager.rs

@@ -2587,9 +2587,13 @@ impl AuthManager {
             .unsettled_chatgpt_refresh
             .lock()
             .map_err(|_| std::io::Error::other("Refresh progress is unavailable."))?;
-        Ok(unsettled
-            .as_ref()
-            .is_some_and(|tokens| auth.get_token_data().as_ref().ok() == Some(tokens)))
+        // Match the stored generation; get_token_data() rewrites workspace claims.
+        Ok(unsettled.as_ref().is_some_and(|tokens| {
+            auth.get_current_auth_json()
+                .and_then(|auth| auth.tokens)
+                .as_ref()
+                == Some(tokens)
+        }))
     }
 
     /// Current cached auth (clone). May be `None` if not logged in or load failed.