New SiteContent.

server/api/admin/site-content/[key].put.js

@@ -0,0 +1,28 @@
+import SiteContent from '../../../models/siteContent.js'
+import { requireAdmin } from '../../../utils/auth.js'
+import { validateBody } from '../../../utils/validateBody.js'
+import { SITE_CONTENT_KEYS, siteContentUpsertSchema } from '../../../utils/schemas.js'
+
+export default defineEventHandler(async (event) => {
+  await requireAdmin(event)
+
+  const key = getRouterParam(event, 'key')
+  if (!SITE_CONTENT_KEYS.includes(key)) {
+    throw createError({ statusCode: 404, statusMessage: 'Unknown content key' })
+  }
+
+  const body = await validateBody(event, siteContentUpsertSchema)
+
+  const doc = await SiteContent.findOneAndUpdate(
+    { key },
+    { $set: { title: body.title || '', body: body.body || '' } },
+    { upsert: true, new: true, runValidators: true }
+  ).lean()
+
+  return {
+    key: doc.key,
+    title: doc.title || '',
+    body: doc.body || '',
+    updatedAt: doc.updatedAt || null
+  }
+})

server/api/site-content/[key].get.js

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+import SiteContent from '../../models/siteContent.js'
+import { SITE_CONTENT_KEYS } from '../../utils/schemas.js'
+
+export default defineEventHandler(async (event) => {
+  const key = getRouterParam(event, 'key')
+
+  if (!SITE_CONTENT_KEYS.includes(key)) {
+    throw createError({ statusCode: 404, statusMessage: 'Unknown content key' })
+  }
+
+  const doc = await SiteContent.findOne({ key }).lean()
+  return {
+    key,
+    title: doc?.title || '',
+    body: doc?.body || '',
+    updatedAt: doc?.updatedAt || null
+  }
+})

server/api/site-content/keys.get.js

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+import { SITE_CONTENT_KEYS } from '../../utils/schemas.js'
+
+export default defineEventHandler(() => {
+  return { keys: [...SITE_CONTENT_KEYS] }
+})

server/models/siteContent.js

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+import mongoose from 'mongoose'
+
+const siteContentSchema = new mongoose.Schema({
+  key: { type: String, required: true, unique: true, index: true },
+  title: { type: String, default: '' },
+  body: { type: String, default: '' },
+}, { timestamps: true })
+
+export default mongoose.models.SiteContent || mongoose.model('SiteContent', siteContentSchema)