Added a configurable timeout knob

internal/llm/openai_compatible_client_test.go

@@ -287,3 +287,52 @@ func TestOpenAICompatibleClientTimeout(t *testing.T) {
 		t.Fatalf("expected ErrRequestFailed, got %v", err)
 	}
 }
+
+func TestOpenAICompatibleClientRequestTimeoutOverride(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		time.Sleep(100 * time.Millisecond)
+		_, _ = w.Write([]byte(`{"choices":[{"message":{"content":"ok"}}]}`))
+	}))
+	defer ts.Close()
+
+	client, err := NewOpenAICompatibleClient(OpenAICompatibleConfig{
+		BaseURL: ts.URL + "/v1",
+		Model:   "m",
+		Timeout: 50 * time.Millisecond,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, err := client.Generate(context.Background(), domain.GenerateRequest{
+		Prompt: domain.RenderedPrompt{Messages: []domain.RenderedMessage{{Role: "user", Content: "hi"}}},
+		Target: domain.ModelTarget{TimeoutSeconds: 1},
+	})
+	if err != nil {
+		t.Fatalf("expected request-level timeout override to succeed, got %v", err)
+	}
+	if resp.Content != "ok" {
+		t.Fatalf("expected response content ok, got %q", resp.Content)
+	}
+}
+
+func TestOpenAICompatibleClientNegativeTimeoutRejected(t *testing.T) {
+	client, err := NewOpenAICompatibleClient(OpenAICompatibleConfig{
+		BaseURL: "http://example.com/v1",
+		Model:   "m",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = client.Generate(context.Background(), domain.GenerateRequest{
+		Prompt: domain.RenderedPrompt{Messages: []domain.RenderedMessage{{Role: "user", Content: "hi"}}},
+		Target: domain.ModelTarget{TimeoutSeconds: -1},
+	})
+	if err == nil {
+		t.Fatal("expected invalid request error")
+	}
+	if !errors.Is(err, ErrInvalidRequest) {
+		t.Fatalf("expected ErrInvalidRequest, got %v", err)
+	}
+}