Label Business Pro Lite plans as Business Premium (#40301)

## What changed

- Show `SelfServeBusinessProLite` as `Business Premium` in TUI account displays instead of grouping it under `Business`.
- Update the display-name and app-server session tests for the new label.

GitOrigin-RevId: aac5c7abe9543f5d49f4e9dc9cbe20e7e3b41e5b

codex-rs/tui/src/app_server_session.rs

@@ -3712,7 +3712,7 @@ mod tests {
             Some(StatusAccountDisplay::ChatGpt {
                 email: None,
                 plan: Some(ref plan),
-            }) if plan == "Business"
+            }) if plan == "Business Premium"
         ));
     }
 }

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

@@ -99,6 +99,8 @@ pub(crate) fn compose_account_display(
 pub(crate) fn plan_type_display_name(plan_type: PlanType) -> String {
     if plan_type == PlanType::EnterpriseCbpAutomation {
         "Enterprise (Automation)".to_string()
+    } else if plan_type == PlanType::SelfServeBusinessProLite {
+        "Business Premium".to_string()
     } else if plan_type.is_team_like() {
         "Business".to_string()
     } else if plan_type.is_business_like() {
@@ -225,7 +227,6 @@ mod tests {
             (PlanType::Pro, "Pro"),
             (PlanType::ProLite, "Pro Lite"),
             (PlanType::Team, "Business"),
-            (PlanType::SelfServeBusinessProLite, "Business"),
             (PlanType::SelfServeBusinessUsageBased, "Business"),
             (PlanType::Business, "Enterprise"),
             (PlanType::EnterpriseCbpAutomation, "Enterprise (Automation)"),
@@ -238,6 +239,10 @@ mod tests {
         for (plan_type, expected) in cases {
             assert_eq!(plan_type_display_name(plan_type), expected);
         }
+        insta::assert_snapshot!(
+            plan_type_display_name(PlanType::SelfServeBusinessProLite),
+            @"Business Premium"
+        );
         insta::assert_snapshot!(
             "education_plan_display_names",
             [PlanType::Edu, PlanType::EduPlus, PlanType::EduPro]