Поставил HTML по дефолту

src/app_runtime/control/base.py

@@ -26,7 +26,7 @@ TraceResponseFormat = Literal["json", "text", "html"]
 class TraceQueryRequest:
     levels: tuple[TraceLevel, ...] = ("ERROR", "WARNING", "INFO")
     include_attrs_json: bool = False
-    response_format: TraceResponseFormat = "text"
+    response_format: TraceResponseFormat = "html"
 
 
 TraceLookupHandler = Callable[[str, TraceQueryRequest], Awaitable[TraceLogView]]

src/app_runtime/control/trace_presenter.py

@@ -14,7 +14,7 @@ from app_runtime.contracts.trace import TraceLevel, TraceLogRecord, TraceLogView
 class TraceRequestParser:
     def parse(self, request: Request) -> TraceQueryRequest:
         raw_levels = request.query_params.get("levels")
-        raw_format = request.query_params.get("format", "text")
+        raw_format = request.query_params.get("format", "html")
         response_format = raw_format.strip().lower()
         if response_format not in {"json", "text", "html"}:
             raise ValueError(f"unsupported trace format: {raw_format}")