Reduce frontend polling load and clean stale UI hooks

wwwroot/js/data.js

@@ -1,5 +1,20 @@
 import { api, adminApi } from "./api.js";
-import { handleAuthError, renderAllSuggestions, renderCounts, renderMySuggestions, renderPhasePill, renderPhaseTitles, renderResults, renderVotes, renderWelcome, setAuthUI, syncVoteScores, updatePhaseNav, openResultsRelockModal, openSuggestionsChangedModal } from "./ui.js";
+import {
+    handleAuthError,
+    renderAllSuggestions,
+    renderCounts,
+    renderMySuggestions,
+    renderPhasePill,
+    renderPhaseTitles,
+    renderResults,
+    renderVotes,
+    renderWelcome,
+    setAuthUI,
+    syncVoteScores,
+    updatePhaseNav,
+    openResultsRelockModal,
+    openSuggestionsChangedModal,
+} from "./ui.js";
 import { state, clearUserState } from "./state.js";
 
 export async function loadState() {
@@ -86,18 +101,26 @@ export async function loadResults() {
 }
 
 export async function refreshPhaseData() {
+    const before = buildRefreshSnapshot();
     try {
         const prevPhase = state.phase;
         const prevResultsOpen = state.resultsOpen;
         await loadState();
-        await Promise.all([loadSuggestData(), loadSuggestionsData(), loadResults()]);
+        await Promise.all([
+            loadSuggestData(),
+            loadSuggestionsData(),
+            loadResults(),
+        ]);
         if (state.phase === "Vote") {
             if (!state.votesRendered) await loadVoteData();
         } else {
             state.votesRendered = false;
             await loadVoteData();
         }
-        if (state.me?.isAdmin) {
+        const adminCard = document.getElementById("admin-card");
+        const adminPanelVisible =
+            !!adminCard && !adminCard.classList.contains("hidden");
+        if (state.me?.isAdmin && adminPanelVisible) {
             state.adminVoteStatus = await adminApi.voteStatus();
         }
         if (
@@ -109,12 +132,34 @@ export async function refreshPhaseData() {
             openResultsRelockModal();
         }
         updatePhaseNav();
+        const after = buildRefreshSnapshot();
+        return before !== after;
     } catch (err) {
         if (handleAuthError(err, clearUserState)) return;
         throw err;
     }
 }
 
+function buildRefreshSnapshot() {
+    return JSON.stringify({
+        phase: state.phase,
+        resultsOpen: state.resultsOpen,
+        votesFinal: state.votesFinal,
+        hasJoker: state.hasJoker,
+        counts: state.counts
+            ? [
+                  state.counts.players,
+                  state.counts.suggestions,
+                  state.counts.votes,
+              ]
+            : null,
+        mineCount: state.mySuggestions?.length ?? 0,
+        allSig: state.allSuggestionsSig ?? "",
+        voteCount: state.myVotes?.length ?? 0,
+        resultsCount: state.results?.length ?? 0,
+    });
+}
+
 export function signatureSuggestions(list) {
     return JSON.stringify(
         list.map((s) => [