fix(tui): report an incomplete replay instead of an empty response

_format_replay_tool_result sets success=False with no `error` key when a
replay never reaches DONE, so the widened gate sent it down the normal
response branch and rendered elapsed time with an empty response, as if
the request had come back.

Report the replay status instead (TIMEDOUT, ERROR, ...). Both the error
and success paths are unchanged.

Adds tests for the incomplete-replay and successful-replay cases.

strix/interface/tui/renderers/proxy_renderer.py

@@ -275,6 +275,15 @@ class RepeatRequestRenderer(BaseToolRenderer):
         if _has_result(status) and isinstance(result, dict):
             if not result.get("success", True) and result.get("error"):
                 text.append(f"\n  error: {_sanitize(str(result['error']), 150)}", style="#ef4444")
+            elif not result.get("success", True):
+                # A replay that never reached DONE carries no `error`; report the
+                # replay status rather than rendering an empty response as if the
+                # request had come back.
+                replay_status = _sanitize(str(result.get("status") or "unknown"), 40)
+                text.append(
+                    f"\n  replay did not complete: {replay_status}",
+                    style="#ef4444",
+                )
             else:
                 elapsed_ms = result.get("elapsed_ms")
                 response = result.get("response") or {}

tests/test_proxy_renderer.py

@@ -85,6 +85,43 @@ def test_tool_status_from_result_maps_failure_to_failed() -> None:
     assert _tool_status_from_result({"success": True}) == "completed"
 
 
+def test_incomplete_replay_says_so_instead_of_showing_an_empty_response() -> None:
+    # _format_replay_tool_result sets success=False with no `error` key when the
+    # replay never reached DONE; it must not render as a returned response.
+    tool_data = {
+        "args": {"request_id": "req-1"},
+        "result": {
+            "success": False,
+            "status": "TIMEDOUT",
+            "session_id": "s-1",
+            "elapsed_ms": 30000,
+            "response": None,
+        },
+        "status": "failed",
+    }
+    text = _plain(RepeatRequestRenderer.render(tool_data))
+
+    assert "replay did not complete: TIMEDOUT" in text
+    assert "<<" not in text, "rendered a response line for a replay that never returned"
+
+
+def test_successful_replay_still_renders_its_response() -> None:
+    tool_data = {
+        "args": {"request_id": "req-1"},
+        "result": {
+            "success": True,
+            "status": "DONE",
+            "elapsed_ms": 12,
+            "response": {"status_code": 200, "body": "ok"},
+        },
+        "status": "completed",
+    }
+    text = _plain(RepeatRequestRenderer.render(tool_data))
+
+    assert "200" in text
+    assert "replay did not complete" not in text
+
+
 def test_successful_result_still_renders() -> None:
     tool_data = {
         "args": {},