feat: basic auth shit + db init

internal/auth/types.go

@@ -0,0 +1,32 @@
+package auth
+
+import (
+	"gorm.io/gorm"
+)
+
+type TokenResponse struct {
+	AccessToken  string `json:"access_token"`
+	TokenType    string `json:"token_type"`
+	ExpiresIn    uint64 `json:"expires_in"`
+	RefreshToken string `json:"refresh_token"`
+	Scope        string `json:"scope"`
+}
+
+type User struct {
+	gorm.Model
+	ID          string `json:"id" gorm:"primaryKey;autoIncrement:false"`
+	Username    string `json:"username"`
+	Blacklisted bool
+	Email       string `json:"email"`
+}
+
+type AvatarDecorationData struct {
+	Asset string
+	SkuID string
+}
+
+type ExchangeCodeRequest struct {
+	GrantType   string `json:"grant_type"`
+	Code        string `json:"code"`
+	RedirectUri string `json:"redirect_uri"`
+}