feat: 添加隐藏CCS导入按钮的设置选项

在管理后台设置页面新增开关，允许管理员隐藏API Keys页面的"导入CCS"按钮

backend/internal/service/domain_constants.go

@@ -93,13 +93,14 @@ const (
 	SettingKeyLinuxDoConnectRedirectURL  = "linuxdo_connect_redirect_url"
 
 	// OEM设置
-	SettingKeySiteName     = "site_name"     // 网站名称
-	SettingKeySiteLogo     = "site_logo"     // 网站Logo (base64)
-	SettingKeySiteSubtitle = "site_subtitle" // 网站副标题
-	SettingKeyAPIBaseURL   = "api_base_url"  // API端点地址（用于客户端配置和导入）
-	SettingKeyContactInfo  = "contact_info"  // 客服联系方式
-	SettingKeyDocURL       = "doc_url"       // 文档链接
-	SettingKeyHomeContent  = "home_content"  // 首页内容（支持 Markdown/HTML，或 URL 作为 iframe src）
+	SettingKeySiteName            = "site_name"              // 网站名称
+	SettingKeySiteLogo            = "site_logo"              // 网站Logo (base64)
+	SettingKeySiteSubtitle        = "site_subtitle"          // 网站副标题
+	SettingKeyAPIBaseURL          = "api_base_url"           // API端点地址（用于客户端配置和导入）
+	SettingKeyContactInfo         = "contact_info"           // 客服联系方式
+	SettingKeyDocURL              = "doc_url"                // 文档链接
+	SettingKeyHomeContent         = "home_content"           // 首页内容（支持 Markdown/HTML，或 URL 作为 iframe src）
+	SettingKeyHideCcsImportButton = "hide_ccs_import_button" // 是否隐藏 API Keys 页面的导入 CCS 按钮
 
 	// 默认配置
 	SettingKeyDefaultConcurrency = "default_concurrency" // 新用户默认并发量

backend/internal/service/setting_service.go

@@ -69,6 +69,7 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		SettingKeyContactInfo,
 		SettingKeyDocURL,
 		SettingKeyHomeContent,
+		SettingKeyHideCcsImportButton,
 		SettingKeyLinuxDoConnectEnabled,
 	}
 
@@ -96,6 +97,7 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		ContactInfo:         settings[SettingKeyContactInfo],
 		DocURL:              settings[SettingKeyDocURL],
 		HomeContent:         settings[SettingKeyHomeContent],
+		HideCcsImportButton: settings[SettingKeyHideCcsImportButton] == "true",
 		LinuxDoOAuthEnabled: linuxDoEnabled,
 	}, nil
 }
@@ -132,6 +134,7 @@ func (s *SettingService) GetPublicSettingsForInjection(ctx context.Context) (any
 		ContactInfo         string `json:"contact_info,omitempty"`
 		DocURL              string `json:"doc_url,omitempty"`
 		HomeContent         string `json:"home_content,omitempty"`
+		HideCcsImportButton bool   `json:"hide_ccs_import_button"`
 		LinuxDoOAuthEnabled bool   `json:"linuxdo_oauth_enabled"`
 		Version             string `json:"version,omitempty"`
 	}{
@@ -146,6 +149,7 @@ func (s *SettingService) GetPublicSettingsForInjection(ctx context.Context) (any
 		ContactInfo:         settings.ContactInfo,
 		DocURL:              settings.DocURL,
 		HomeContent:         settings.HomeContent,
+		HideCcsImportButton: settings.HideCcsImportButton,
 		LinuxDoOAuthEnabled: settings.LinuxDoOAuthEnabled,
 		Version:             s.version,
 	}, nil
@@ -193,6 +197,7 @@ func (s *SettingService) UpdateSettings(ctx context.Context, settings *SystemSet
 	updates[SettingKeyContactInfo] = settings.ContactInfo
 	updates[SettingKeyDocURL] = settings.DocURL
 	updates[SettingKeyHomeContent] = settings.HomeContent
+	updates[SettingKeyHideCcsImportButton] = strconv.FormatBool(settings.HideCcsImportButton)
 
 	// 默认配置
 	updates[SettingKeyDefaultConcurrency] = strconv.Itoa(settings.DefaultConcurrency)
@@ -339,6 +344,7 @@ func (s *SettingService) parseSettings(settings map[string]string) *SystemSettin
 		ContactInfo:                  settings[SettingKeyContactInfo],
 		DocURL:                       settings[SettingKeyDocURL],
 		HomeContent:                  settings[SettingKeyHomeContent],
+		HideCcsImportButton:          settings[SettingKeyHideCcsImportButton] == "true",
 	}
 
 	// 解析整数类型

backend/internal/service/settings_view.go

@@ -25,13 +25,14 @@ type SystemSettings struct {
 	LinuxDoConnectClientSecretConfigured bool
 	LinuxDoConnectRedirectURL            string
 
-	SiteName     string
-	SiteLogo     string
-	SiteSubtitle string
-	APIBaseURL   string
-	ContactInfo  string
-	DocURL       string
-	HomeContent  string
+	SiteName            string
+	SiteLogo            string
+	SiteSubtitle        string
+	APIBaseURL          string
+	ContactInfo         string
+	DocURL              string
+	HomeContent         string
+	HideCcsImportButton bool
 
 	DefaultConcurrency int
 	DefaultBalance     float64
@@ -66,6 +67,7 @@ type PublicSettings struct {
 	ContactInfo         string
 	DocURL              string
 	HomeContent         string
+	HideCcsImportButton bool
 	LinuxDoOAuthEnabled bool
 	Version             string
 }