feat(pitch-deck): branded short links for magic URLs (pitch.breakpilot.ai/p/ab3xk2)

- New pitch_short_links table stores 6-char alphanumeric codes mapped to magic link tokens
- GET /p/[code] redirects to /auth/verify?token=... (302, validates expiry)
- All magic link generation points (invite, generate-link, resend) now create a short code
- Emails (invite + resend) use the short URL — less token-like, cleaner for spam filters
- Copy-link UI shows short URL prominently with full URL as fallback
- Migration 008 added to /api/admin/migrate

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pitch-deck/app/pitch-admin/(authed)/investors/[id]/page.tsx

@@ -116,11 +116,12 @@ export default function InvestorDetailPage() {
     setBusy(false)
     if (res.ok) {
       const d = await res.json()
+      const link = d.short_url || d.url
       try {
-        await navigator.clipboard.writeText(d.url)
-        flashToast('Magic link copied to clipboard')
+        await navigator.clipboard.writeText(link)
+        flashToast('Short link copied to clipboard')
       } catch {
-        flashToast(`Link (copy manually): ${d.url}`)
+        flashToast(`Link (copy manually): ${link}`)
       }
     } else {
       const err = await res.json().catch(() => ({}))

pitch-deck/app/pitch-admin/(authed)/investors/new/page.tsx

@@ -35,7 +35,7 @@ export default function NewInvestorPage() {
   const [closingEdited, setClosingEdited] = useState(false)
   const [error, setError] = useState('')
   const [submitting, setSubmitting] = useState(false)
-  const [createdLink, setCreatedLink] = useState<string | null>(null)
+  const [createdLink, setCreatedLink] = useState<{ short: string; full: string } | null>(null)
   const [copied, setCopied] = useState(false)
   const prevLang = useRef<Lang>('de')
 
@@ -85,7 +85,7 @@ export default function NewInvestorPage() {
       if (res.ok) {
         const data = await res.json()
         if (!sendEmail) {
-          setCreatedLink(data.magic_link_url)
+          setCreatedLink({ short: data.short_url, full: data.magic_link_url })
         } else {
           router.push('/pitch-admin/investors')
           router.refresh()
@@ -103,7 +103,7 @@ export default function NewInvestorPage() {
 
   async function copyLink() {
     if (!createdLink) return
-    await navigator.clipboard.writeText(createdLink)
+    await navigator.clipboard.writeText(createdLink.short)
     setCopied(true)
     setTimeout(() => setCopied(false), 2000)
   }
@@ -130,9 +130,15 @@ export default function NewInvestorPage() {
             <p className="text-sm text-white/50">No email was sent. Copy the magic link below to use in your outreach.</p>
           </div>
 
-          <div className="bg-black/40 border border-white/10 rounded-xl p-4 text-left">
-            <p className="text-[10px] font-semibold text-white/40 uppercase tracking-wider mb-2">Magic Link</p>
-            <p className="text-xs text-indigo-300 break-all leading-relaxed">{createdLink}</p>
+          <div className="bg-black/40 border border-white/10 rounded-xl p-4 text-left space-y-3">
+            <div>
+              <p className="text-[10px] font-semibold text-white/40 uppercase tracking-wider mb-1">Short Link <span className="text-green-400/70 normal-case font-normal">(use this in emails)</span></p>
+              <p className="text-sm text-indigo-300 font-mono">{createdLink?.short}</p>
+            </div>
+            <div>
+              <p className="text-[10px] font-semibold text-white/25 uppercase tracking-wider mb-1">Full Link</p>
+              <p className="text-[10px] text-white/30 break-all leading-relaxed font-mono">{createdLink?.full}</p>
+            </div>
           </div>
 
           <div className="flex items-center justify-center gap-3">

pitch-deck/app/pitch-admin/(authed)/investors/page.tsx

@@ -59,11 +59,12 @@ export default function InvestorsPage() {
     setBusy(null)
     if (res.ok) {
       const data = await res.json()
+      const link = data.short_url || data.url
       try {
-        await navigator.clipboard.writeText(data.url)
-        flashToast('Magic link copied to clipboard')
+        await navigator.clipboard.writeText(link)
+        flashToast('Short link copied to clipboard')
       } catch {
-        flashToast(`Link (copy manually): ${data.url}`)
+        flashToast(`Link (copy manually): ${link}`)
       }
     } else {
       const err = await res.json().catch(() => ({}))