feat: add domestic model provider presets

internal/contentmodel/service_test.go

@@ -2,6 +2,33 @@ package contentmodel
 
 import "testing"
 
+func TestValidateInputAcceptsSupportedDomesticProviders(t *testing.T) {
+	providers := []string{"ark", "dashscope", "deepseek", "moonshot", "zhipu", "qianfan", "hunyuan", "minimax", "baichuan", "siliconflow"}
+	for _, provider := range providers {
+		t.Run(provider, func(t *testing.T) {
+			input := CreateInput{
+				TenantID: "10000000-0000-0000-0000-000000000001", DisplayName: provider,
+				Provider: provider, BaseURL: "https://model.example.com/v1", ModelID: "summary-model",
+				APIKey: "test-api-key", Temperature: 0.2, MaxTokens: 1200,
+			}
+			if err := validateInput(input); err != nil {
+				t.Fatalf("supported provider was rejected: %v", err)
+			}
+		})
+	}
+}
+
+func TestValidateInputRejectsUnknownProvider(t *testing.T) {
+	input := CreateInput{
+		TenantID: "10000000-0000-0000-0000-000000000001", DisplayName: "unknown",
+		Provider: "unknown", BaseURL: "https://model.example.com/v1", ModelID: "summary-model",
+		APIKey: "test-api-key", Temperature: 0.2, MaxTokens: 1200,
+	}
+	if err := validateInput(input); err == nil {
+		t.Fatal("unknown provider was accepted")
+	}
+}
+
 func TestValidateInputAllowsComposeOllamaEndpoint(t *testing.T) {
 	input := CreateInput{
 		TenantID: "10000000-0000-0000-0000-000000000001", DisplayName: "本地 Qwen",