Add core server Controller base, auth hook, and buildServer

src/core/server/buildServer.ts

@@ -0,0 +1,17 @@
+import Fastify, { type FastifyInstance } from 'fastify';
+import type { Controller } from './Controller';
+import { registerAuthHook } from './authHook';
+
+export interface BuildServerOptions {
+  secretKey: string;
+  controllers: Controller[];
+}
+
+export function buildServer(options: BuildServerOptions): FastifyInstance {
+  const app = Fastify({ logger: false });
+  registerAuthHook(app, options.secretKey);
+  for (const controller of options.controllers) {
+    controller.register(app);
+  }
+  return app;
+}