feat: configuration loader.

examples/config-loader.ts

@@ -0,0 +1,12 @@
+import { ConfigLoader } from "../src/config-loader.js";
+
+const loader = new ConfigLoader();
+
+loader
+  .loadConfig()
+  .then((config) => {
+    console.log("config", config);
+  })
+  .catch((error) => {
+    console.error(error);
+  });

examples/register.ts

@@ -1,4 +1,4 @@
-import { AppConfig, ServiceRegister } from "../src";
+import { AppConfig, ServiceRegister } from "../src/index.js.js";
 
 const config: AppConfig = {
   etcd: {