[feature/backend] registration control

backend/internal/config/config.go

@@ -11,6 +11,7 @@ type Config struct {
 	Database  DatabaseConfig     `yaml:"database"`
 	Server    ServerConfig       `yaml:"server"`
 	JWT       JWTConfig         `yaml:"jwt"`
+	Auth      AuthConfig        `yaml:"auth"`
 	Storage   StorageConfig     `yaml:"storage"`
 	Logging   LoggingConfig     `yaml:"logging"`
 	RateLimit types.RateLimitConfig `yaml:"rate_limit"`
@@ -32,6 +33,13 @@ type JWTConfig struct {
 	Expiration string `yaml:"expiration"`
 }
 
+type AuthConfig struct {
+	Registration struct {
+		Enabled bool   `yaml:"enabled"`
+		Message string `yaml:"message"`
+	} `yaml:"registration"`
+}
+
 type LoggingConfig struct {
 	Level  string `yaml:"level"`
 	Format string `yaml:"format"`