feat: Add fresh database setup script and media handling improvements

- Introduced a new script for setting up a fresh database with ordered migration tasks.
- Added a utility function to find media by filename, improving media handling in various scripts.
- Updated preload scripts to utilize the new media fetching utility.
- Refactored datenschutz, impressum, and mitglied-werden fields to use stable IDs and anchor IDs.
- Enhanced home and network pages to accommodate new field structures.
- Added new preload script for global CMS settings.
- Improved code readability and organization across multiple files.

src/scripts/preload-globals-cms.ts

@@ -0,0 +1,67 @@
+import 'dotenv/config'
+
+import config from '@payload-config'
+import { getPayload, type Payload } from 'payload'
+import { mediaByFilename } from './mediaByFilename'
+
+import { defaultFooterData, defaultHeaderData } from '@/spa/cmsNavigation'
+import { defaultSiteSettings } from '@/spa/siteSettings'
+
+async function main() {
+  const payload = await getPayload({ config })
+
+  const [logo, ewifLogo, partnerLogos, skylineImage] = await Promise.all([
+    mediaByFilename(payload, 'bmp-logo.png'),
+    mediaByFilename(payload, 'ewif-logo.png'),
+    mediaByFilename(payload, 'partner-logos.png'),
+    mediaByFilename(payload, 'munich-skyline.jpg'),
+  ])
+
+  const { logo: _headerLogo, languages, ...headerData } = defaultHeaderData
+  const { logo: _footerLogo, partnerLogos: _defaultPartnerLogos, ...footerData } = defaultFooterData
+  const { skylineImageUrl: _skylineImageUrl, ...siteSettingsData } = defaultSiteSettings
+
+  await Promise.all([
+    payload.updateGlobal({
+      slug: 'header',
+      context: { disableRevalidate: true },
+      data: {
+        ...headerData,
+        logo,
+        languages: languages.map((label) => ({ label })),
+      } as never,
+    }),
+    payload.updateGlobal({
+      slug: 'footer',
+      context: { disableRevalidate: true },
+      data: {
+        ...footerData,
+        logo,
+        partnerLogos: [
+          { alt: 'EWIF – Europäisches Wirtschaftsforum', image: ewifLogo },
+          {
+            alt: 'Hochschule für angewandtes Management · Gipfeldialog Altaussee',
+            image: partnerLogos,
+          },
+        ].filter((item) => item.image),
+      } as never,
+    }),
+    payload.updateGlobal({
+      slug: 'site-settings',
+      context: { disableRevalidate: true },
+      data: {
+        ...siteSettingsData,
+        skylineImage,
+      } as never,
+    }),
+  ])
+
+  payload.logger.info('Preloaded global CMS settings.')
+  await payload.destroy()
+  process.exit(0)
+}
+
+main().catch((error) => {
+  console.error(error)
+  process.exit(1)
+})