Fix stream not read error for files whose recieved from bot.

src/contract_check/core/http_logging.py

@@ -147,13 +147,20 @@ def http_log_event_hooks(
         request.extensions[started_key] = time.perf_counter()
         if not is_debug_enabled():
             return
+        try:
+            body: bytes | str | None = request.content
+        except httpx.RequestNotRead:
+            # Streaming bodies (e.g. multipart file uploads) are never loaded
+            # into memory, so there is nothing to inspect without consuming
+            # the stream the actual send needs. Summarize instead of crashing.
+            body = "<streaming body not read>"
         log.debug(
             "http_request",
             service=service,
             method=request.method,
             url=str(request.url),
             headers=redact_headers(request.headers),
-            body=safe_body(request.content, request.headers.get("content-type"), max_payload_chars),
+            body=safe_body(body, request.headers.get("content-type"), max_payload_chars),
         )
 
     async def _log_response(response: httpx.Response) -> None:

tests/unit/test_http_logging.py

@@ -145,3 +145,37 @@ async def test_event_hooks_silent_without_debug(monkeypatch: pytest.MonkeyPatch)
             await client.get("https://api.test/v1/things")
 
     assert logs == []
+
+
+async def test_event_hooks_handle_streaming_multipart_body(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    """Multipart uploads stream their body; the request hook must not crash."""
+    monkeypatch.setattr(hhttp, "is_debug_enabled", lambda: True)
+    _config = structlog.get_config()
+    monkeypatch.setattr(
+        hhttp,
+        "get_logger",
+        lambda name: structlog.get_logger(name),
+    )
+    structlog.configure(
+        processors=_config["processors"],
+        wrapper_class=structlog.stdlib.BoundLogger,
+        logger_factory=_config["logger_factory"],
+        cache_logger_on_first_use=False,
+    )
+    with capture_logs() as logs:
+        transport = httpx.MockTransport(lambda request: httpx.Response(202, json={"ok": True}))
+        async with httpx.AsyncClient(
+            transport=transport,
+            event_hooks=http_log_event_hooks(service="test-svc"),
+        ) as client:
+            response = await client.post(
+                "https://api.test/v1/documents",
+                files={"file": ("contract.pdf", b"%PDF-1.7 fake", "application/pdf")},
+            )
+
+    assert response.status_code == 202
+    request_entry = next(entry for entry in logs if entry.get("event") == "http_request")
+    assert request_entry["method"] == "POST"
+    assert request_entry["body"] == "<streaming body not read>"