Organize backend into product executable and shared Go modules

backend/product/auth/config/auth_config.go

@@ -0,0 +1,36 @@
+package middleware
+
+type AuthStorageConfig struct {
+	AccountsCollection               string `yaml:"accounts_collection"`
+	RefreshTokensCollection          string `yaml:"refresh_tokens_collection"`
+	ClientsCollection                string `yaml:"clients_collection"`
+	VerificationTokensCollection     string `yaml:"verification_tokens_collection"`
+	LoginAttemptsCollection          string `yaml:"login_attempts_collection"`
+	VerificationRateLimitsCollection string `yaml:"verification_rate_limits_collection"`
+}
+
+func (c *AuthStorageConfig) WithDefaults() AuthStorageConfig {
+	if c == nil {
+		c = &AuthStorageConfig{}
+	}
+	res := *c
+	if res.AccountsCollection == "" {
+		res.AccountsCollection = "accounts"
+	}
+	if res.RefreshTokensCollection == "" {
+		res.RefreshTokensCollection = "refresh_tokens"
+	}
+	if res.ClientsCollection == "" {
+		res.ClientsCollection = "clients"
+	}
+	if res.VerificationTokensCollection == "" {
+		res.VerificationTokensCollection = "verification_tokens"
+	}
+	if res.LoginAttemptsCollection == "" {
+		res.LoginAttemptsCollection = "login_attempts"
+	}
+	if res.VerificationRateLimitsCollection == "" {
+		res.VerificationRateLimitsCollection = "verification_rate_limits"
+	}
+	return res
+}