Optimize header link spacing and add visual feedback for active pages:
- Reduce link padding and gap for more compact navigation
- Shorten German labels: "In Saison" to "Saison", "Stichwörter" to "Tags"
- Remove "Tipps" section from navigation menu
Add active page highlighting across all layouts:
- Highlight current page links in red (matching hover color)
- Desktop: animated red underline that smoothly slides between links
- Mobile: static red underline for active links in hamburger menu
- Underline aligns precisely with text width (excludes padding)
Improve transitions:
- Fix color transition to only animate color, not layout properties
- Disable underline transition during window resize to prevent lag
- Underline updates immediately on resize for perfect alignment
- Upgraded @auth/sveltekit from 0.14.0 to 1.10.0
- Updated session API from event.locals.getSession() to event.locals.auth()
- Fixed TypeScript definitions for new auth API in app.d.ts
- Updated layout server load functions to use LayoutServerLoad type
- Fixed session callbacks with proper token type casting
- Switched to generic OIDC provider config to resolve issuer validation issues
- All auth functionality now working with latest Auth.js version
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
