Add authentication function

Signed-off-by: Asai Neko <sugar@sne.moe>

config/types.go

@@ -3,6 +3,9 @@ package config
 type config struct {
 	Server   server   `yaml:"server"`
 	Database database `yaml:"database"`
+	Email    email    `yaml:"email"`
+	Secrets  secrets  `yaml:"secrets"`
+	TTL      ttl      `yaml:"ttl"`
 }
 
 type server struct {
@@ -19,3 +22,17 @@ type database struct {
 	Username string `yaml:"username"`
 	Password string `yaml:"password"`
 }
+
+type email struct {
+	ResendApiKey string `yaml:"resend_api_key"`
+	From         string `yaml:"from"`
+}
+
+type secrets struct {
+	jwt       string `yaml:"jwt"`
+	turnstile string `yaml:"turnstile"`
+}
+
+type ttl struct {
+	magic_token string `yaml:"magin_token"`
+}