Treat ChatGPT hc plan as Enterprise (#15789)

codex-rs/login/src/token_data.rs

@@ -72,7 +72,7 @@ impl PlanType {
             "pro" => Self::Known(KnownPlan::Pro),
             "team" => Self::Known(KnownPlan::Team),
             "business" => Self::Known(KnownPlan::Business),
-            "enterprise" => Self::Known(KnownPlan::Enterprise),
+            "enterprise" | "hc" => Self::Known(KnownPlan::Enterprise),
             "education" | "edu" => Self::Known(KnownPlan::Edu),
             _ => Self::Unknown(raw.to_string()),
         }
@@ -88,6 +88,7 @@ pub enum KnownPlan {
     Pro,
     Team,
     Business,
+    #[serde(alias = "hc")]
     Enterprise,
     Edu,
 }

codex-rs/login/src/token_data_tests.rs

@@ -53,6 +53,21 @@ fn id_token_info_parses_go_plan() {
     assert_eq!(info.get_chatgpt_plan_type().as_deref(), Some("Go"));
 }
 
+#[test]
+fn id_token_info_parses_hc_plan_as_enterprise() {
+    let fake_jwt = fake_jwt(serde_json::json!({
+        "email": "user@example.com",
+        "https://api.openai.com/auth": {
+            "chatgpt_plan_type": "hc"
+        }
+    }));
+
+    let info = parse_chatgpt_jwt_claims(&fake_jwt).expect("should parse");
+    assert_eq!(info.email.as_deref(), Some("user@example.com"));
+    assert_eq!(info.get_chatgpt_plan_type().as_deref(), Some("Enterprise"));
+    assert_eq!(info.is_workspace_account(), true);
+}
+
 #[test]
 fn id_token_info_handles_missing_fields() {
     let fake_jwt = fake_jwt(serde_json::json!({ "sub": "123" }));