Implement authentication, waitlist, and logging upgrades

server/api/auth/invitations.get.ts

@@ -0,0 +1,15 @@
+import { requireUserSession } from '../../utils/auth'
+import { InvitationCode } from '../../models/InvitationCode'
+
+export default defineEventHandler(async (event) => {
+  const user = await requireUserSession(event)
+  const codes = await InvitationCode.find({ createdBy: user._id }).sort({ createdAt: -1 }).lean()
+  return codes.map((code) => ({
+    code: code.code,
+    createdAt: code.createdAt,
+    expiresAt: code.expiresAt,
+    usedAt: code.usedAt,
+    usedBy: code.usedBy ? String(code.usedBy) : null,
+  }))
+})
+