change model cap to server overload (#11388)

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codex-rs/app-server-protocol/src/protocol/v2.rs

@@ -88,10 +88,7 @@ macro_rules! v2_enum_from_core {
 pub enum CodexErrorInfo {
     ContextWindowExceeded,
     UsageLimitExceeded,
-    ModelCap {
-        model: String,
-        reset_after_seconds: Option<u64>,
-    },
+    ServerOverloaded,
     HttpConnectionFailed {
         #[serde(rename = "httpStatusCode")]
         #[ts(rename = "httpStatusCode")]
@@ -128,13 +125,7 @@ impl From<CoreCodexErrorInfo> for CodexErrorInfo {
         match value {
             CoreCodexErrorInfo::ContextWindowExceeded => CodexErrorInfo::ContextWindowExceeded,
             CoreCodexErrorInfo::UsageLimitExceeded => CodexErrorInfo::UsageLimitExceeded,
-            CoreCodexErrorInfo::ModelCap {
-                model,
-                reset_after_seconds,
-            } => CodexErrorInfo::ModelCap {
-                model,
-                reset_after_seconds,
-            },
+            CoreCodexErrorInfo::ServerOverloaded => CodexErrorInfo::ServerOverloaded,
             CoreCodexErrorInfo::HttpConnectionFailed { http_status_code } => {
                 CodexErrorInfo::HttpConnectionFailed { http_status_code }
             }