test(story-1.7): cover remaining with_options branches and per-call timeout

Adds tests for the previously-uncovered with_options override paths
(base_url, default_headers, default_query, decoder) plus a per-call
timeout test that verifies `timeout=` propagates into the Request's
extensions dict. Brings src/httpware/client.py to 100% line coverage,
addressing the final review's coverage concern.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: lesnik512

tests/test_client_methods.py

@@ -161,3 +161,11 @@ async def test_request_method_uses_first_positional_method_arg() -> None:
     await client.request("CUSTOM", "/foo")
     assert transport.last_request is not None
     assert transport.last_request.method == "CUSTOM"
+
+
+async def test_per_call_timeout_propagates_to_request_extensions() -> None:
+    transport = _RecordingTransport()
+    client = AsyncClient(transport=transport)
+    await client.get("/foo", timeout=2.5)
+    assert transport.last_request is not None
+    assert "timeout" in transport.last_request.extensions

tests/test_client_middleware_wiring.py

@@ -91,3 +91,37 @@ async def test_view_does_not_own_transport() -> None:
     client = AsyncClient()
     view = client.with_options(timeout=10)
     assert view._owns_transport is False  # noqa: SLF001
+
+
+async def test_with_options_overrides_base_url() -> None:
+    transport = _RecordingTransport()
+    client = AsyncClient(transport=transport, base_url="https://api.test/v1")
+    view = client.with_options(base_url="https://other.test/v2")
+    assert view._config.base_url == "https://other.test/v2"  # noqa: SLF001
+
+
+async def test_with_options_overrides_default_headers() -> None:
+    transport = _RecordingTransport()
+    client = AsyncClient(transport=transport, default_headers={"x-old": "1"})
+    view = client.with_options(default_headers={"x-new": "2"})
+    assert view._config.default_headers == {"x-new": "2"}  # noqa: SLF001
+
+
+async def test_with_options_overrides_default_query() -> None:
+    transport = _RecordingTransport()
+    client = AsyncClient(transport=transport, default_query={"old": "1"})
+    view = client.with_options(default_query={"new": "2"})
+    assert view._config.default_query == {"new": "2"}  # noqa: SLF001
+
+
+async def test_with_options_overrides_decoder() -> None:
+    transport = _RecordingTransport()
+
+    class _NoopDecoder:
+        def decode(self, content: bytes, model: type) -> object:  # pragma: no cover  # noqa: ARG002
+            return content
+
+    new_decoder = _NoopDecoder()
+    client = AsyncClient(transport=transport)
+    view = client.with_options(decoder=new_decoder)
+    assert view._config.decoder is new_decoder  # noqa: SLF001