feat: Add detail pages for Tim Hannemann and Christoph Stanger

[andygrunwald]

Summary

• Add team member detail page for Tim Hannemann (image-left layout, LinkedIn social, inline links to Open Reply GmbH and f-online.at)
• Add team member detail page for Christoph Stanger (image-right layout, GitHub + LinkedIn socials)
• Update team-members.json with profileLink and subtitle for both members
• Both pages include OG profile meta tags, JSON-LD Person schema, and subtitle badges

Test plan

• Verify /kiosk-betreiber/tim-hannemann/ renders with image on the left, correct body text, and working inline links
• Verify /kiosk-betreiber/christoph-stanger/ renders with image on the right, correct body text, and GitHub + LinkedIn icons
• Verify both pages show subtitle badges ("Timwork" and "Mr. Serverless")
• Verify OG meta tags (og:type=profile, profile:first_name, profile:last_name) in page source
• Verify JSON-LD Person schema with correct sameAs URLs
• Verify team overview page links to both new detail pages

🤖 Generated with Claude Code

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