fix: inttest runner crash and minio bucket-init proxy issue

- Remove --profiling-output arg from runner.yaml (plugin uses default path)
- Inline profiling hooks in root conftest.py with graceful fallback
- Replace mc-based bucket-init with Python urllib (no proxy interference)
- Add explicit ProxyHandler({}) to guarantee no proxy usage in bucket-init

tests/integration/conftest.py

@@ -16,6 +16,7 @@ from typing import Any
 
 import httpx
 import pytest
+import pytest_asyncio
 
 from tests.integration.profiler import EndpointProfiler
 from tests.integration.seed_sandbox import (
@@ -34,9 +35,6 @@ from tests.integration.seed_sandbox import (
     SEED_VARIANT_IDS,
 )
 
-# Profiling plugin loaded via root conftest.py (pytest_plugins must be top-level)
-
-
 # ---------------------------------------------------------------------------
 # ProfiledAsyncClient — transparent timing wrapper
 # ---------------------------------------------------------------------------
@@ -129,7 +127,7 @@ def trading_api_url() -> str:
 # ---------------------------------------------------------------------------
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def query_client(
     query_api_url: str, profiler: EndpointProfiler,
 ) -> ProfiledAsyncClient:
@@ -138,7 +136,7 @@ async def query_client(
         yield ProfiledAsyncClient(client, profiler)
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def registry_client(
     registry_api_url: str, profiler: EndpointProfiler,
 ) -> ProfiledAsyncClient:
@@ -147,7 +145,7 @@ async def registry_client(
         yield ProfiledAsyncClient(client, profiler)
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def risk_client(
     risk_api_url: str, profiler: EndpointProfiler,
 ) -> ProfiledAsyncClient:
@@ -156,7 +154,7 @@ async def risk_client(
         yield ProfiledAsyncClient(client, profiler)
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def trading_client(
     trading_api_url: str, profiler: EndpointProfiler,
 ) -> ProfiledAsyncClient:

tests/integration/conftest_profiling.py

@@ -16,27 +16,13 @@ import pytest
 
 from tests.integration.profiler import EndpointProfiler
 
+# ---------------------------------------------------------------------------
+# CLI option — registered by root conftest.py to ensure availability
+# ---------------------------------------------------------------------------
+
 DEFAULT_PROFILING_OUTPUT = "/tmp/profiling-report.json"
 
 
-# ---------------------------------------------------------------------------
-# CLI option
-# ---------------------------------------------------------------------------
-
-
-def pytest_addoption(parser: pytest.Parser) -> None:
-    """Add ``--profiling-output`` CLI flag to pytest."""
-    parser.addoption(
-        "--profiling-output",
-        action="store",
-        default=DEFAULT_PROFILING_OUTPUT,
-        help=(
-            "Path for the JSON profiling report "
-            f"(default: {DEFAULT_PROFILING_OUTPUT})"
-        ),
-    )
-
-
 # ---------------------------------------------------------------------------
 # Session-scoped profiler instance (shared across all tests)
 # ---------------------------------------------------------------------------