Relaxed CLI requirements when defaults are specified in the profile or application defaults

internal/llm/openai_compatible_client_test.go

@@ -336,3 +336,45 @@ func TestOpenAICompatibleClientNegativeTimeoutRejected(t *testing.T) {
 		t.Fatalf("expected ErrInvalidRequest, got %v", err)
 	}
 }
+
+func TestOpenAICompatibleClientAllowsEmptyConfiguredBaseURL(t *testing.T) {
+	client, err := NewOpenAICompatibleClient(OpenAICompatibleConfig{
+		BaseURL: "",
+		Model:   "m",
+	})
+	if err != nil {
+		t.Fatalf("expected empty configured base URL to be allowed, got %v", err)
+	}
+
+	_, err = client.Generate(context.Background(), domain.GenerateRequest{
+		Prompt: domain.RenderedPrompt{Messages: []domain.RenderedMessage{{Role: "user", Content: "hi"}}},
+		Target: domain.ModelTarget{Endpoint: "http://localhost:9999/v1"},
+	})
+	if err == nil {
+		t.Fatal("expected request failure due to unreachable endpoint")
+	}
+	if !errors.Is(err, ErrRequestFailed) {
+		t.Fatalf("expected ErrRequestFailed with request endpoint override, got %v", err)
+	}
+}
+
+func TestOpenAICompatibleClientRequiresEndpointWhenUnsetEverywhere(t *testing.T) {
+	client, err := NewOpenAICompatibleClient(OpenAICompatibleConfig{
+		BaseURL: "",
+		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{},
+	})
+	if err == nil {
+		t.Fatal("expected endpoint-required error")
+	}
+	if !errors.Is(err, ErrInvalidRequest) {
+		t.Fatalf("expected ErrInvalidRequest, got %v", err)
+	}
+}