Merge pull request #1572 from touwaeriol/feat/payment-system-v2

feat(payment): add complete payment system with multi-provider support

backend/internal/handler/setting_handler.go

@@ -59,6 +59,7 @@ func (h *SettingHandler) GetPublicSettings(c *gin.Context) {
 		OIDCOAuthEnabled:                 settings.OIDCOAuthEnabled,
 		OIDCOAuthProviderName:            settings.OIDCOAuthProviderName,
 		BackendModeEnabled:               settings.BackendModeEnabled,
+		PaymentEnabled:                   settings.PaymentEnabled,
 		Version:                          h.version,
 	})
 }