fix(provider): bound OpenAI-compatible request timeouts

tests/providers/test_openai_compat_timeout.py

@@ -0,0 +1,53 @@
+from unittest.mock import patch, sentinel
+
+from nanobot.providers.openai_compat_provider import OpenAICompatProvider
+from nanobot.providers.registry import ProviderSpec
+
+
+def _assert_openai_compat_timeout(timeout) -> None:
+    assert timeout == 120.0
+
+
+def test_openai_compat_provider_sets_sdk_timeout() -> None:
+    with patch("nanobot.providers.openai_compat_provider.AsyncOpenAI") as mock_async_openai:
+        OpenAICompatProvider(api_key="test-key", api_base="https://example.com/v1")
+
+    kwargs = mock_async_openai.call_args.kwargs
+    _assert_openai_compat_timeout(kwargs["timeout"])
+    assert kwargs["http_client"] is None
+
+
+def test_openai_compat_provider_sets_timeout_on_local_http_client() -> None:
+    spec = ProviderSpec(
+        name="local",
+        keywords=(),
+        env_key="",
+        is_local=True,
+        default_api_base="http://127.0.0.1:11434/v1",
+    )
+
+    with (
+        patch("nanobot.providers.openai_compat_provider.AsyncOpenAI") as mock_async_openai,
+        patch(
+            "nanobot.providers.openai_compat_provider.httpx.AsyncClient",
+            return_value=sentinel.http_client,
+        ) as mock_http_client,
+    ):
+        OpenAICompatProvider(spec=spec)
+
+    client_kwargs = mock_http_client.call_args.kwargs
+    _assert_openai_compat_timeout(client_kwargs["timeout"])
+    assert client_kwargs["limits"].keepalive_expiry == 0
+
+    openai_kwargs = mock_async_openai.call_args.kwargs
+    _assert_openai_compat_timeout(openai_kwargs["timeout"])
+    assert openai_kwargs["http_client"] is sentinel.http_client
+
+
+def test_openai_compat_provider_timeout_can_be_overridden_by_env(monkeypatch) -> None:
+    monkeypatch.setenv("NANOBOT_OPENAI_COMPAT_TIMEOUT_S", "45")
+
+    with patch("nanobot.providers.openai_compat_provider.AsyncOpenAI") as mock_async_openai:
+        OpenAICompatProvider(api_key="test-key", api_base="https://example.com/v1")
+
+    assert mock_async_openai.call_args.kwargs["timeout"] == 45.0