- remove unnecessary / deprecated code

src/app.ts

@@ -2,10 +2,9 @@ import { getUserId } from "./identity";
 import {
   addOption,
   toggleVote,
-  deleteOption,
   setDeadline,
   clearDeadline,
-  createViewModel,
+  getDeadline,
 } from "./state";
 import { initSync } from "./sync";
 import { StatusBar } from "./components/StatusBar";
@@ -48,18 +47,13 @@ export function initApp(container: HTMLElement): () => void {
 
   const actions = {
     addOption: (label: string) => {
-      const vm = createViewModel(getViewModelParams());
-      if (vm.votingClosed) return;
+      if (isVotingClosed()) return;
       return addOption(sync.options, label, userId);
     },
     toggleVote: (optionId: string) => {
-      const vm = createViewModel(getViewModelParams());
-      if (vm.votingClosed) return;
+      if (isVotingClosed()) return;
       toggleVote(sync.votes, userId, optionId);
     },
-    deleteOption: (optionId: string) => {
-      deleteOption(sync.options, sync.votes, optionId);
-    },
     startDeadline: (durationMs: number) => {
       setDeadline(sync.deadlineMap, durationMs);
     },
@@ -68,18 +62,10 @@ export function initApp(container: HTMLElement): () => void {
     },
   };
 
-  function getViewModelParams() {
-    return {
-      yTitle: sync.yTitle,
-      options: sync.options,
-      votes: sync.votes,
-      deadlineMap: sync.deadlineMap,
-      roomId,
-      shareUrl,
-      connectionStatus: sync.getConnectionStatus(),
-      peerCount: sync.getPeerCount(),
-      userId,
-    };
+  function isVotingClosed() {
+    const deadline = getDeadline(sync.deadlineMap);
+    const votingClosed = deadline !== null && Date.now() >= deadline;
+    return votingClosed;
   }
 
   // --- Build UI ---
@@ -112,10 +98,7 @@ export function initApp(container: HTMLElement): () => void {
     if (result && !result.ok) return result.error;
     return null;
   });
-  const pollList = PollList(sync.options, sync.votes, userId, () => {
-    const vm = createViewModel(getViewModelParams());
-    return vm.votingClosed;
-  }, actions.toggleVote, actions.deleteOption);
+  const pollList = PollList(sync.options, sync.votes, userId, isVotingClosed, actions.toggleVote);
   const deadlineTimer = DeadlineTimer(
     sync.deadlineMap,
     actions.startDeadline,