✨ feat: enhance medialib image handling and add asset URL resolution

- Implemented `resolveApiAssetUrl` function to normalize asset URLs based on API base.
- Updated `MedialibImage` component to utilize new asset URL resolution and added support for alt text and class properties.
- Enhanced image loading behavior with improved width measurement and focal point handling.
- Added placeholder image handling and improved accessibility with alt text.
- Introduced new test script for auditing broken links in skill documentation.
- Expanded seeded test content to include medialib entries and updated related tests for pagebuilder previews.
- Improved global setup and teardown logging for clarity on seeded content management.

README.md

@@ -10,7 +10,7 @@ Starter Kit für SPAs(s)   `;)`   mit Svelte und TibiCMS inkl. SSR
 [ ] Repository geklont und Remotes konfiguriert
 [ ] __PROJECT_NAME__ in .env ersetzt (kebab-case)
 [ ] __TIBI_NAMESPACE__ in .env ersetzt (snake_case)
-[ ] __TIBI_NAMESPACE__ in api/config.yml und frontend/.htaccess ersetzt
+[ ] __TIBI_NAMESPACE__ in api/config.yml und, falls Apache-Rewrite/Proxy genutzt wird, in frontend/.htaccess ersetzt
 [ ] Keine verbleibenden __*__-Platzhalter (mit grep prüfen)
 [ ] App.svelte hat <svelte:head> mit <title>
 [ ] ADMIN_TOKEN in api/config.yml.env gesetzt