Enhance Provider struct to include Label field for improved provider identification

- Added Label field to the Provider struct in types.go to allow for better identification of third-party login providers.
- Updated createPublicConfig function in signin.go to populate the new Label field when creating public provider configurations.

openapi/signin/signin.go

@@ -512,6 +512,7 @@ func createPublicConfig(fullConfig *Config) Config {
 				publicProvider := Provider{
 					ID:        provider.ID,
 					Title:     provider.Title,
+					Label:     provider.Label,
 					Logo:      provider.Logo,
 					Color:     provider.Color,
 					TextColor: provider.TextColor,

openapi/signin/types.go

@@ -76,6 +76,7 @@ type YaoClientConfig struct {
 // Provider represents a third party login provider
 type Provider struct {
 	ID                    string           `json:"id,omitempty"`
+	Label                 string           `json:"label,omitempty"`
 	Title                 string           `json:"title,omitempty"`
 	Logo                  string           `json:"logo,omitempty"`
 	Color                 string           `json:"color,omitempty"`