feat(finale): full ceremony UI — admin console, jury phases+notes, deliberation flow, audience voting, big-screen view

- Admin Ceremony tab: phase driver with real server timers + overtime, run
  order with category grouping + send-to-screens, audience windows + QR
  dialog, override slides, timing log, results reveal builder/stepper
- Admin Deliberation tab: per-category session creation from the round's
  jury group, open/close voting, tally/runoff/override/finalize
- Jury live page: ON_DECK/PRESENTING/QA/SCORING aware, autosaved notes,
  vote comments; LiveVotingForm fixed (criteria score >10 rejection bug,
  permanent lock-out after submit) and made revisable
- Jury deliberation page: identityless submitVote, review-before-rank
  context (finale scores editable, ceremony notes, docs link)
- Jury nav: Live Ceremony + per-category Deliberation links
- Public: rebuilt QR audience voting page (anonymous-safe, favorite-pick
  windows, change-until-close), new /live/ceremony/[roundId] projector view
  with animated reveal, confetti, audience QR slide, override slides

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

package-lock.json

@@ -65,6 +65,7 @@
         "openai": "^6.16.0",
         "papaparse": "^5.4.1",
         "pdf-parse": "^2.4.5",
+        "qrcode.react": "^4.2.0",
         "react": "^19.0.0",
         "react-day-picker": "^9.13.0",
         "react-dom": "^19.0.0",
@@ -13417,6 +13418,15 @@
       ],
       "license": "MIT"
     },
+    "node_modules/qrcode.react": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/qrcode.react/-/qrcode.react-4.2.0.tgz",
+      "integrity": "sha512-QpgqWi8rD9DsS9EP3z7BT+5lY5SFhsqGjpgW5DY/i3mK4M9DTBNz3ErMi8BWYEfI3L0d8GIbGmcdFAS1uIRGjA==",
+      "license": "ISC",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/qs": {
       "version": "6.15.0",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.0.tgz",