Require acceptance for ticket transfers; privacy and legal updates

Transfers now send the new holder a link (to the email/phone typed) and
only complete once they accept; they can decline and the sender can
cancel. No response reveals whether contact details belong to an
account, and attendee account links are no longer sent to payers.
Terms of Use and Privacy Policy are updated for all features since
1.12, with a full cookie policy and a "Cookie settings" control. The
/docs route list now covers every mounted route, and account
activation auto-login is fixed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CP62L9JxHomA36aYP1ekCe

backend/prisma/migrations/20261019182648_add_transfer_requests/migration.sql

@@ -0,0 +1,30 @@
+-- CreateTable
+CREATE TABLE "TicketTransferRequest" (
+    "id" TEXT NOT NULL,
+    "ticketId" TEXT NOT NULL,
+    "requestedById" TEXT NOT NULL,
+    "toName" TEXT NOT NULL,
+    "toEmail" TEXT,
+    "toPhone" TEXT,
+    "details" JSONB,
+    "tokenHash" TEXT NOT NULL,
+    "status" TEXT NOT NULL DEFAULT 'pending',
+    "expiresAt" TIMESTAMP(3) NOT NULL,
+    "respondedAt" TIMESTAMP(3),
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "TicketTransferRequest_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "TicketTransferRequest_tokenHash_key" ON "TicketTransferRequest"("tokenHash");
+
+-- CreateIndex
+CREATE INDEX "TicketTransferRequest_ticketId_status_idx" ON "TicketTransferRequest"("ticketId", "status");
+
+-- AddForeignKey
+ALTER TABLE "TicketTransferRequest" ADD CONSTRAINT "TicketTransferRequest_ticketId_fkey" FOREIGN KEY ("ticketId") REFERENCES "Ticket"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "TicketTransferRequest" ADD CONSTRAINT "TicketTransferRequest_requestedById_fkey" FOREIGN KEY ("requestedById") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+

backend/prisma/schema.prisma

@@ -112,6 +112,7 @@ model User {
   feedbackInvites  FeedbackInvite[]
   feedbackGiven    FeedbackResponse[]
   impersonationsDone ImpersonationSession[] @relation("ImpersonationAdmin")
+  transferRequests   TicketTransferRequest[] @relation("TransferRequester")
   impersonatedIn     ImpersonationSession[] @relation("ImpersonationTarget")
   scanLocksForced  ScanLock[]          @relation("ScanLockForcedBy")
   syncReportsDone  OfflineSyncReport[] @relation("SyncReportReviewer")
@@ -389,6 +390,7 @@ model Ticket {
   event                Event              @relation(fields: [eventId], references: [id], onDelete: Restrict)
   usages               TicketUsage[]
   transfers            TicketTransfer[]
+  transferRequests     TicketTransferRequest[]
 
   @@index([holderUserId])
   @@index([eventId])
@@ -1047,6 +1049,28 @@ model AllocationAssignment {
   @@index([attendeeId])
 }
 
+/// A transfer waiting for the new holder to accept it from the link sent to the email /
+/// phone the sender typed. Nothing changes on the ticket until it's accepted. `details`
+/// holds what the sender entered (date of birth, gender, parent details on youth events).
+model TicketTransferRequest {
+  id            String    @id @default(uuid())
+  ticketId      String
+  requestedById String
+  toName        String
+  toEmail       String?
+  toPhone       String?
+  details       Json?
+  tokenHash     String    @unique
+  status        String    @default("pending") // pending | accepted | declined | cancelled | expired
+  expiresAt     DateTime
+  respondedAt   DateTime?
+  createdAt     DateTime  @default(now())
+  ticket        Ticket    @relation(fields: [ticketId], references: [id], onDelete: Cascade)
+  requestedBy   User      @relation("TransferRequester", fields: [requestedById], references: [id], onDelete: Cascade)
+
+  @@index([ticketId, status])
+}
+
 /// A ticket handed to someone else. oldQrCode is the code that stopped working (null
 /// when one place was split off a shared group ticket, whose code stays valid).
 model TicketTransfer {