feat: smart config

internal/config/jwt.go

@@ -0,0 +1,8 @@
+package config
+
+type JwtConfig struct {
+	PrivateKey string `env:"GUARD_JWT_PRIVATE" required:"true"`
+	PublicKey  string `env:"GUARD_JWT_PUBLIC" required:"true"`
+	KID        string `env:"GUARD_JWT_KID" default:"guard-rsa"`
+	Issuer     string `env:"GUARD_JWT_ISSUER" required:"true"`
+}