fix(app-server): preserve dynamic tool schema diagnostics

codex-rs/exec/src/event_processor_with_jsonl_output_tests.rs

@@ -40,6 +40,7 @@ fn failed_turn_does_not_overwrite_output_last_message_file() {
                     message: "turn failed".to_string(),
                     additional_details: None,
                     codex_error_info: None,
+                    data: None,
                 }),
                 started_at: None,
                 completed_at: Some(0),

codex-rs/exec/tests/event_processor_with_json_output.rs

@@ -1530,6 +1530,7 @@ fn failed_turn_clears_stale_final_message() {
                     message: "turn failed".to_string(),
                     additional_details: None,
                     codex_error_info: None,
+                    data: None,
                 }),
                 started_at: None,
                 completed_at: None,
@@ -1586,6 +1587,7 @@ fn turn_failure_prefers_structured_error_message() {
             message: "backend failed".to_string(),
             codex_error_info: None,
             additional_details: Some("request id abc".to_string()),
+            data: None,
         },
         will_retry: false,
         thread_id: "thread-1".to_string(),