refactor(api/utils): add story query helper function

to avoid having to write the same `populate` calls over and over

lib/server/dbHelpers/storyQuerier.ts

@@ -0,0 +1,23 @@
+import type { H3Event, EventHandlerRequest } from "h3";
+import { Challenge } from "~/models/challenges/gen";
+import { Story } from "~/models/stories";
+export default async function (ev: H3Event<EventHandlerRequest>) {
+	const id = parseInt(getRouterParam(ev, "id") as string);
+	const chapterIndex = ev.context.chapterIndex;
+	if (isNaN(id) || isNaN(chapterIndex))
+		throw createError({
+			statusCode: 404,
+			message: "Not found.",
+		});
+	const story = await Story.findById(id)
+		.populate("author", "username profile blocked")
+		.populate("chapters.bands")
+		.populate({
+			path: "ficmas",
+			populate: { path: "wisher", select: "_id username" },
+		})
+		.populate({ path: "challenge", model: Challenge })
+		.exec();
+	if (!story) throw createError({ statusCode: 404, message: "Not found." });
+	return story;
+}