chore: Halkyon Todo's scaffold joins the repository in apps/todo

Its server, client and app as `serverpod create` made them, with the
switch to server-side sessions that was waiting uncommitted, as files:
its one commit holds the scaffold alone.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/todo/halkyon_todo_server/lib/server.dart

@@ -0,0 +1,109 @@
+import 'dart:io';
+
+import 'package:serverpod_auth_idp_server/core.dart';
+import 'package:serverpod_auth_idp_server/providers/email.dart';
+import 'package:serverpod_cloud_storage/serverpod_cloud_storage.dart';
+
+import 'src/cache_busting.dart';
+import 'src/generated/serverpod.dart';
+import 'src/web/routes/app_config_route.dart';
+
+/// The starting point of the Serverpod server.
+void run(List<String> args) async {
+  // Initialize Serverpod. The generated Serverpod class is already connected
+  // with your project's generated code.
+  final pod = Serverpod(args);
+
+  // Initialize authentication services for the server.
+  // Token managers will be used to validate and issue authentication keys,
+  // and the identity providers will be the authentication options available for users.
+  pod.initializeAuthServices(
+    tokenManagerBuilders: [
+      // Server-side sessions: every request looks its session up in the
+      // database, so signing out or deleting an account takes effect at once.
+      // A session unused for 90 days expires; one in use never does.
+      ServerSideSessionsConfigFromPasswords(
+        defaultSessionInactivityTimeout: const Duration(days: 90),
+      ),
+    ],
+    identityProviderBuilders: [
+      // Configure the email identity provider for email/password authentication.
+      // The default setup works with Serverpod Cloud without configuration. In
+      // development the verification codes are logged to the console, and in
+      // staging and production they are sent through the Serverpod Cloud email
+      // service. If you want to use a custom provider for sending emails, use
+      // `EmailIdpConfigFromPasswords`.
+      ServerpodCloudEmailIdpConfig(
+        appDisplayName: 'halkyon_todo',
+      ),
+    ],
+  );
+
+  // Serve all files in the web/static relative directory under /web.
+  // These are used by the default web page.
+  pod.webServer.addRoute(
+    StaticRoute.withCacheBusting(cacheBustingConfig),
+    cacheBustingConfig.mountPrefix,
+  );
+
+  // Setup the app config route.
+  // We build this configuration based on the servers api url and serve it to
+  // the flutter app.
+  pod.webServer.addRoute(
+    AppConfigRoute(apiConfig: pod.config.apiServer),
+    '/assets/assets/config.json',
+  );
+
+  // Checks if the flutter web app has been built and serves it if it has.
+  final appDir = Directory(Uri(path: 'web/app').toFilePath());
+  if (appDir.existsSync()) {
+    // Serve the flutter web app under /.
+    pod.webServer.addRoute(
+      FlutterRoute(
+        appDir,
+        // If building the Flutter app with WASM, set the below parameter to
+        // true and add the --wasm flag to the flutter build command.
+        enableWasmHeaders: false,
+      ),
+      '/',
+    );
+  } else {
+    // If the flutter web app has not been built, serve the build app page.
+    final defaultRoute = StaticRoute.file(
+      File(
+        Uri(path: 'web/pages/build_flutter_app.html').toFilePath(),
+      ),
+    );
+
+    pod.webServer.addMiddleware(
+      FallbackMiddleware(
+        fallback: defaultRoute,
+        on: (response) => response.statusCode == 404,
+      ).call,
+      '/',
+    );
+
+    pod.webServer.addRoute(
+      defaultRoute,
+      '/**',
+    );
+  }
+
+  // Configure cloud storage.
+  // This setup works with Serverpod Cloud without extra configuration.
+  // If you want to use a custom provider for cloud storage, replace these
+  // with your preferred provider.
+  pod.addCloudStorage(
+    await ServerpodCloudProvider.private(
+      fallback: () => DatabaseCloudStorage('private'),
+    ),
+  );
+  pod.addCloudStorage(
+    await ServerpodCloudProvider.public(
+      fallback: () => DatabaseCloudStorage('public'),
+    ),
+  );
+
+  // Start the server.
+  await pod.start();
+}