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>

prisma/migrations/20260203100000_add_invite_token_columns/migration.sql

@@ -0,0 +1,24 @@
+-- Add invite token columns to User table if they don't exist
+-- These were accidentally skipped in the prototype1_improvements migration
+
+DO $$
+BEGIN
+    -- Add inviteToken column if it doesn't exist
+    IF NOT EXISTS (
+        SELECT 1 FROM information_schema.columns
+        WHERE table_name = 'User' AND column_name = 'inviteToken'
+    ) THEN
+        ALTER TABLE "User" ADD COLUMN "inviteToken" TEXT;
+    END IF;
+
+    -- Add inviteTokenExpiresAt column if it doesn't exist
+    IF NOT EXISTS (
+        SELECT 1 FROM information_schema.columns
+        WHERE table_name = 'User' AND column_name = 'inviteTokenExpiresAt'
+    ) THEN
+        ALTER TABLE "User" ADD COLUMN "inviteTokenExpiresAt" TIMESTAMP(3);
+    END IF;
+END $$;
+
+-- Create unique index on inviteToken if it doesn't exist
+CREATE UNIQUE INDEX IF NOT EXISTS "User_inviteToken_key" ON "User"("inviteToken");