删除服务端材质渲染功能及system_config表，转为环境变量配置，初步配置管理员功能

internal/service/mocks_test.go

@@ -565,53 +565,6 @@ func (m *MockTokenRepository) BatchDelete(ctx context.Context, accessTokens []st
 	return count, nil
 }
 
-// MockSystemConfigRepository 模拟SystemConfigRepository
-type MockSystemConfigRepository struct {
-	configs map[string]*model.SystemConfig
-}
-
-func NewMockSystemConfigRepository() *MockSystemConfigRepository {
-	return &MockSystemConfigRepository{
-		configs: make(map[string]*model.SystemConfig),
-	}
-}
-
-func (m *MockSystemConfigRepository) GetByKey(ctx context.Context, key string) (*model.SystemConfig, error) {
-	if config, ok := m.configs[key]; ok {
-		return config, nil
-	}
-	return nil, nil
-}
-
-func (m *MockSystemConfigRepository) GetPublic(ctx context.Context) ([]model.SystemConfig, error) {
-	var result []model.SystemConfig
-	for _, v := range m.configs {
-		result = append(result, *v)
-	}
-	return result, nil
-}
-
-func (m *MockSystemConfigRepository) GetAll(ctx context.Context) ([]model.SystemConfig, error) {
-	var result []model.SystemConfig
-	for _, v := range m.configs {
-		result = append(result, *v)
-	}
-	return result, nil
-}
-
-func (m *MockSystemConfigRepository) Update(ctx context.Context, config *model.SystemConfig) error {
-	m.configs[config.Key] = config
-	return nil
-}
-
-func (m *MockSystemConfigRepository) UpdateValue(ctx context.Context, key, value string) error {
-	if config, ok := m.configs[key]; ok {
-		config.Value = value
-		return nil
-	}
-	return errors.New("config not found")
-}
-
 // ============================================================================
 // Service Mocks
 // ============================================================================