refactor: remove guest email handling logic from subscription process

src/app/coffee-abonnements/summary/page.tsx

@@ -530,9 +530,6 @@ export default function SummaryPage() {
     setSubmitError(null)
     setSubmitLoading(true)
     try {
-      const recipientEmail = form.recipientEmail.trim()
-      const recipientName = form.recipientName.trim()
-
       const payload = {
         items: selectedEntries.map(entry => ({
           coffeeId: entry.coffee.id,
@@ -572,57 +569,8 @@ export default function SummaryPage() {
       console.info('[SummaryPage] subscribeAbo payload JSON:', JSON.stringify(payload))
       await subscribeAbo(payload)
 
-      // TEMP: Guest email workaround (ignore contract/PDF for mail)
-      // Open an email draft to the recipient when subscription is for someone else.
-      if (!isForSelf && recipientEmail) {
-        try {
-          // A referral token is required for /register, so we generate a 1-time referral link.
-          const refRes = await createReferralLink({ expiresInDays: 7, maxUses: 1 })
-          const refBody: any = (refRes as any)?.body
-          const refCode =
-            refBody?.data?.code ||
-            refBody?.data?.token ||
-            refBody?.data?.ref ||
-            refBody?.code ||
-            refBody?.token ||
-            refBody?.ref ||
-            ''
-
-          const origin = typeof window !== 'undefined' ? window.location.origin : ''
-          const guestLink = refCode
-            ? (origin
-              ? `${origin}/register?ref=${encodeURIComponent(String(refCode))}&guest=true`
-              : `/register?ref=${encodeURIComponent(String(refCode))}&guest=true`)
-            : ''
-
-          setGuestInviteLink(guestLink)
-
-          if (!guestLink) {
-            console.warn('[SummaryPage] Guest invite: could not generate referral token/link', { refBody })
-            setGuestMailtoHref('')
-          } else {
-            const subject = 'Profit Planet – Guest access for your coffee abonnement'
-            const body =
-              `Hallo${recipientName ? ` ${recipientName}` : ''},\n\n` +
-              `du wurdest eingeladen, um Zugriff auf dein Kaffee-Abonnement zu erhalten.\n\n` +
-              `Bitte registriere dich hier als Gast:\n${guestLink}\n\n` +
-              `Liebe Grüße\nProfit Planet`
-
-            const mailto = `mailto:${recipientEmail}?subject=${encodeURIComponent(subject)}&body=${encodeURIComponent(body)}`
-            setGuestMailtoHref(mailto)
-            try {
-              window.location.href = mailto
-            } catch {}
-          }
-        } catch (e) {
-          console.warn('[SummaryPage] Guest invite: failed to create referral link', e)
-          setGuestMailtoHref('')
-          setGuestInviteLink('')
-        }
-      } else {
-        setGuestMailtoHref('')
-        setGuestInviteLink('')
-      }
+      setGuestMailtoHref('')
+      setGuestInviteLink('')
 
       setShowThanks(true);
       try { sessionStorage.removeItem('coffeeSelections'); } catch {}
@@ -979,23 +927,6 @@ export default function SummaryPage() {
               Subscription created.
             </p>
 
-            {!isForSelf && guestMailtoHref && (
-              <div className="mt-4">
-                <a
-                  href={guestMailtoHref}
-                  className="inline-flex items-center justify-center rounded-lg bg-[#1C2B4A] text-white px-4 py-2 font-semibold hover:bg-[#1C2B4A]/90"
-                >
-                  Open guest email draft again
-                </a>
-              </div>
-            )}
-
-            {!isForSelf && guestInviteLink && (
-              <div className="mt-3 text-xs text-gray-600 break-words">
-                Guest registration link: <a className="underline" href={guestInviteLink} target="_blank" rel="noreferrer">{guestInviteLink}</a>
-              </div>
-            )}
-
             <div className="mt-6 grid gap-3 sm:grid-cols-2">
               <button onClick={() => { setShowThanks(false); backToSelection(); }} className="rounded-lg bg-[#1C2B4A] text-white px-4 py-2 font-semibold hover:bg-[#1C2B4A]/90">
                 Back to selection