Portal: Admin-Panel, Rechnungsanalyse und alte Admin-Schnittstellen entfernt

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/middleware/session.js

@@ -58,16 +58,6 @@ export async function requireSession(req, res, next) {
   next()
 }
 
-/** Admin-Session: Ticketsystem-Mitarbeiter (Appwrite-Label "admin") im Portal. */
-export function requireAdminSession(req, res, next) {
-  const session = parsePortalSession(req)
-  if (!session?.appwriteUserId || session.role !== 'admin') {
-    return res.status(401).json({ error: 'Admin-Anmeldung erforderlich' })
-  }
-  req.session = session
-  next()
-}
-
 export function getSessionCustomerId(req) {
   return req.session?.customerId
 }