Fix multiple UI/UX issues and invite token migration

Fixes:
- Round edit: Add cache invalidation for voting dates
- Criteria weights: Replace number input with visual slider
- Member invite: Per-member expertise tags with suggestions
  - Tags now added per member, not globally
  - Comma key support for quick tag entry
  - Suggested tags based on ocean/business expertise
- Accept-invite: Add Suspense boundary for useSearchParams
- Add missing inviteToken columns migration

The invite token columns were accidentally skipped in prototype1
migration. This adds them with IF NOT EXISTS checks.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/app/(auth)/accept-invite/page.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import { useState, useEffect } from 'react'
+import { useState, useEffect, Suspense } from 'react'
 import { useSearchParams, useRouter } from 'next/navigation'
 import { signIn } from 'next-auth/react'
 import { Button } from '@/components/ui/button'
@@ -16,7 +16,7 @@ import { trpc } from '@/lib/trpc/client'
 
 type InviteState = 'loading' | 'valid' | 'accepting' | 'error'
 
-export default function AcceptInvitePage() {
+function AcceptInviteContent() {
   const [state, setState] = useState<InviteState>('loading')
   const [errorType, setErrorType] = useState<string | null>(null)
 
@@ -214,3 +214,24 @@ export default function AcceptInvitePage() {
     </Card>
   )
 }
+
+// Loading fallback for Suspense
+function LoadingCard() {
+  return (
+    <Card className="w-full max-w-md">
+      <CardContent className="flex flex-col items-center justify-center py-12">
+        <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
+        <p className="mt-4 text-sm text-muted-foreground">Loading...</p>
+      </CardContent>
+    </Card>
+  )
+}
+
+// Export with Suspense boundary for useSearchParams
+export default function AcceptInvitePage() {
+  return (
+    <Suspense fallback={<LoadingCard />}>
+      <AcceptInviteContent />
+    </Suspense>
+  )
+}