feat: add initial API

src/api/extensions.d.ts

@@ -0,0 +1,14 @@
+import type { Session } from '#root/services/sessions/sessions.session.ts';
+import type { Services } from '#root/utils/services.ts';
+import 'fastify';
+declare module 'fastify' {
+  // eslint-disable-next-line
+  export interface FastifyInstance {
+    services: Services;
+  }
+
+  // eslint-disable-next-line
+  export interface FastifyRequest {
+    session: Session;
+  }
+}