feat: round finalization with ranking-based outcomes + award pool notifications

- processRoundClose EVALUATION uses ranking scores + advanceMode config
  (threshold vs count) to auto-set proposedOutcome instead of defaulting all to PASSED
- Advancement emails generate invite tokens for passwordless users with
  "Create Your Account" CTA; rejection emails have no link
- Finalization UI shows account stats (invite vs dashboard link counts)
- Fixed getFinalizationSummary ranking query (was using non-existent rankingsJson)
- New award pool notification system: getAwardSelectionNotificationTemplate email,
  notifyEligibleProjects mutation with invite token generation,
  "Notify Pool" button on award detail page with custom message dialog

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

src/components/admin/round/notify-advanced-button.tsx

@@ -0,0 +1,62 @@
+'use client'
+
+import { useState } from 'react'
+import { trpc } from '@/lib/trpc/client'
+import { toast } from 'sonner'
+import { Trophy } from 'lucide-react'
+import { EmailPreviewDialog } from './email-preview-dialog'
+
+interface NotifyAdvancedButtonProps {
+  roundId: string
+  targetRoundId?: string
+}
+
+export function NotifyAdvancedButton({ roundId, targetRoundId }: NotifyAdvancedButtonProps) {
+  const [open, setOpen] = useState(false)
+  const [customMessage, setCustomMessage] = useState<string | undefined>()
+
+  const preview = trpc.round.previewAdvancementEmail.useQuery(
+    { roundId, targetRoundId, customMessage },
+    { enabled: open }
+  )
+
+  const sendMutation = trpc.round.sendAdvancementNotifications.useMutation({
+    onSuccess: (data) => {
+      toast.success(
+        `Sent ${data.sent} notification${data.sent !== 1 ? 's' : ''}${data.failed ? ` (${data.failed} failed)` : ''}`
+      )
+      setOpen(false)
+    },
+    onError: (err) => toast.error(err.message),
+  })
+
+  return (
+    <>
+      <button
+        onClick={() => setOpen(true)}
+        className="flex items-start gap-3 p-4 rounded-lg border border-l-4 border-l-emerald-500 hover:-translate-y-0.5 hover:shadow-md transition-all text-left"
+      >
+        <Trophy className="h-5 w-5 text-emerald-600 mt-0.5 shrink-0" />
+        <div>
+          <p className="text-sm font-medium">Notify Advanced Teams</p>
+          <p className="text-xs text-muted-foreground mt-0.5">
+            Send advancement emails to passed projects
+          </p>
+        </div>
+      </button>
+
+      <EmailPreviewDialog
+        open={open}
+        onOpenChange={setOpen}
+        title="Notify Advanced Teams"
+        description="Send advancement notification emails to project team members"
+        recipientCount={preview.data?.recipientCount ?? 0}
+        previewHtml={preview.data?.html}
+        isPreviewLoading={preview.isLoading}
+        onSend={(msg) => sendMutation.mutate({ roundId, targetRoundId, customMessage: msg })}
+        isSending={sendMutation.isPending}
+        onRefreshPreview={(msg) => setCustomMessage(msg)}
+      />
+    </>
+  )
+}