feat(admin): add hidden admin panel, ban system, ads, and legal pages
- Admin panel at /p/[ADMIN_SECRET]/* — middleware returns 404 for wrong/missing secret
- tRPC adminRouter: getStats, listPosts, deletePost, listComments, deleteComment,
listUsers, banUser/unbanUser, listAds, createAd/updateAd/deleteAd, getActiveAds,
listModerators, grantRole/revokeRole, getModerationLog, getActiveBan
- Prisma schema: AdminRole, UserBan, Advertisement, ModerationLog models added
- Ban enforcement: (app)/layout.tsx checks active ban on every request → /banned
- Feed ad injection: active ads shown every 7th post in FeedList (AdCard component)
- Clerk middleware.ts: protects all routes; /p/[secret] validated before auth check
- Impressum + Datenschutz pages: contact data base64-obfuscated, decoded client-side only
- shadcn Switch component added
- ADMIN_SECRET + ADMIN_OWNER_ID documented in .env.example
admin
b5f02fe7a4