feat: integrate news data fetching by slug and update ContentsFormPage to utilize fetched data

app/apis/common/get-news-by-slug.ts

@@ -0,0 +1,23 @@
+import { z } from 'zod'
+
+import { newsResponseSchema } from '~/apis/admin/get-news'
+import { HttpServer, type THttpServer } from '~/libs/http-server'
+
+const dataResponseSchema = z.object({
+  data: z.object(newsResponseSchema.shape),
+})
+
+type TParameters = {
+  slug: string
+} & THttpServer
+
+export const getNewsBySlug = async (parameters: TParameters) => {
+  const { slug, accessToken } = parameters
+  try {
+    const { data } = await HttpServer({ accessToken }).get(`/api/news/${slug}`)
+    return dataResponseSchema.parse(data)
+  } catch (error) {
+    // eslint-disable-next-line unicorn/no-useless-promise-resolve-reject
+    return Promise.reject(error)
+  }
+}