feat: centralize routes and navigation guards

src/bootstrap/main.jsx

@@ -1,18 +1,10 @@
 import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
 
+import { createAnonymousSessionAdapter } from "../adapters/auth/external-session-adapter.js";
+import { AppRouter } from "../presentation/routes/app-router.jsx";
 import { BootConfigError, loadRuntimeConfig } from "./load-runtime-config.js";
 
-/** @param {{ environment: string }} props */
-function BootstrapShell({ environment }) {
-  return (
-    <main>
-      <h1>Clean Architecture Frontend</h1>
-      <p>{environment} 런타임 계약이 검증되었습니다.</p>
-    </main>
-  );
-}
-
 /** @param {{ supportReference: string }} props */
 function BootErrorShell({ supportReference }) {
   return (
@@ -36,7 +28,10 @@ async function boot() {
     const runtime = await loadRuntimeConfig();
     root.render(
       <StrictMode>
-        <BootstrapShell environment={runtime.config.APP_ENV} />
+        <AppRouter
+          authSession={createAnonymousSessionAdapter()}
+          basename={runtime.build.routerBasePath}
+        />
       </StrictMode>,
     );
   } catch (error) {