chore: make startup logs easier to read (#1137)

Author: NathanFlurry

packages/core/src/drivers/file-system/manager.ts

@@ -295,7 +295,7 @@ export class FileSystemManagerDriver implements ManagerDriver {
 
 	extraStartupLog() {
 		return {
-			actors: this.#state.actorCountOnStartup,
+			instances: this.#state.actorCountOnStartup,
 			data: this.#state.storagePath,
 		};
 	}

packages/core/src/registry/mod.ts

@@ -69,11 +69,16 @@ export class Registry<A extends RegistryActors> {
 		const client = createClientWithDriver<this>(clientDriver);
 
 		const driverLog = managerDriver.extraStartupLog?.() ?? {};
-		logger().info("rivetkit started", {
+		logger().info("rivetkit ready", {
 			driver: config.driver.name,
-			studio: getStudioUrl(config),
+			definitions: Object.keys(this.#config.use).length,
 			...driverLog,
 		});
+		if (config.studio?.enabled) {
+			logger().info("studio ready", {
+				url: getStudioUrl(config),
+			});
+		}
 
 		return {
 			client,

packages/core/src/test/mod.ts

@@ -51,7 +51,7 @@ function serve(registry: Registry<any>, inputConfig?: InputConfig): ServerType {
 	logger().info("rivetkit started", {
 		hostname: config.hostname,
 		port: config.port,
-		studio: getStudioUrl(config),
+		definitions: Object.keys(registry.config.use).length,
 	});
 
 	return server;