feat: implement passkey registration flow

pkg/gateway/internal/database/models.go

@@ -3,7 +3,6 @@ package database
 import (
 	"net/http"
 
-	"github.com/go-webauthn/webauthn/protocol"
 	"github.com/labstack/echo/v4"
 	"gorm.io/gorm"
 )
@@ -17,13 +16,27 @@ var (
 	ErrUserNotFound      = echo.NewHTTPError(http.StatusNotFound, "User not found")
 )
 
+// Define the credential structure matching our frontend data
+type Credential struct {
+	ID                      string                 `json:"id"`
+	RawID                   string                 `json:"rawId"`
+	Type                    string                 `json:"type"`
+	AuthenticatorAttachment string                 `json:"authenticatorAttachment"`
+	Transports              []string               `json:"transports"`
+	ClientExtensionResults  map[string]interface{} `json:"clientExtensionResults"`
+	Response                struct {
+		AttestationObject string `json:"attestationObject"`
+		ClientDataJSON    string `json:"clientDataJSON"`
+	} `json:"response"`
+}
+
 type User struct {
 	gorm.Model
-	Address     string                           `json:"address"`
-	Handle      string                           `json:"handle"`
-	Name        string                           `json:"name"`
-	CID         string                           `json:"cid"`
-	Credentials []*protocol.CredentialDescriptor `json:"credentials"`
+	Address     string        `json:"address"`
+	Handle      string        `json:"handle"`
+	Name        string        `json:"name"`
+	CID         string        `json:"cid"`
+	Credentials []*Credential `json:"credentials"`
 }
 
 type Session struct {