BREAKING CHANGE(smart-proxy): move certificate persistence to an in-memory store and introduce consumer-managed certStore API; add default self-signed fallback cert and change ACME account handling

ts/proxies/smart-proxy/utils/index.ts

@@ -14,6 +14,9 @@ export * from './route-validator.js';
 // Export route utilities for route operations
 export * from './route-utils.js';
 
+// Export default certificate generator
+export { generateDefaultCertificate } from './default-cert-generator.js';
+
 // Export additional functions from route-helpers that weren't already exported
 export {
   createApiGatewayRoute,