feat(i18n): add UI-only memory label formatter

i18n/en-US.js

@@ -278,4 +278,30 @@ export default {
   "llm.providerHelp.modelFetchUnsupported": "This provider cannot fetch models automatically yet; enter the model name manually.",
   "llm.providerHelp.normalizedUrl": "Normalized URL: {apiUrl}",
   "llm.providerHelp.transport": "Transport: {transport}",
+
+  "memory.type.character": "Character",
+  "memory.type.event": "Event",
+  "memory.type.location": "Location",
+  "memory.type.pov_memory": "POV Memory",
+  "memory.type.reflection": "Reflection",
+  "memory.type.rule": "Rule",
+  "memory.type.synopsis": "Global Synopsis (legacy)",
+  "memory.type.thread": "Thread",
+
+  "scope.badge.characterPov": "Character POV · {owner}",
+  "scope.badge.objectiveGlobal": "Objective · Global",
+  "scope.badge.objectiveRegion": "Objective · {region}",
+  "scope.badge.userPov": "User POV · {owner}",
+  "scope.owner.character": "Character",
+  "scope.owner.unnamed": "Unnamed",
+  "scope.owner.user": "User",
+  "scope.meta.characterPov": "Character POV: {owner}",
+  "scope.meta.userPov": "User POV: {owner}",
+  "scope.region.path": "Region path: {path}",
+  "scope.region.primary": "Primary region: {region}",
+  "scope.region.secondary": "Secondary regions: {regions}",
+
+  "storyTime.meta": "Story time: {time}",
+  "storyTime.mixed": "mixed",
+  "storyTime.mixedTime": "Mixed time",
 };

i18n/zh-CN.js

@@ -278,4 +278,30 @@ export default {
   "llm.providerHelp.modelFetchUnsupported": "该渠道暂不支持自动拉取模型，请手动填写模型名",
   "llm.providerHelp.normalizedUrl": "规范化地址：{apiUrl}",
   "llm.providerHelp.transport": "请求通道：{transport}",
+
+  "memory.type.character": "角色",
+  "memory.type.event": "事件",
+  "memory.type.location": "地点",
+  "memory.type.pov_memory": "主观记忆",
+  "memory.type.reflection": "反思",
+  "memory.type.rule": "规则",
+  "memory.type.synopsis": "全局概要（旧）",
+  "memory.type.thread": "主线",
+
+  "scope.badge.characterPov": "角色 POV · {owner}",
+  "scope.badge.objectiveGlobal": "客观 · 全局",
+  "scope.badge.objectiveRegion": "客观 · {region}",
+  "scope.badge.userPov": "用户 POV · {owner}",
+  "scope.owner.character": "角色",
+  "scope.owner.unnamed": "未命名",
+  "scope.owner.user": "用户",
+  "scope.meta.characterPov": "角色 POV: {owner}",
+  "scope.meta.userPov": "用户 POV: {owner}",
+  "scope.region.path": "地区路径: {path}",
+  "scope.region.primary": "主地区: {region}",
+  "scope.region.secondary": "次级地区: {regions}",
+
+  "storyTime.meta": "剧情时间: {time}",
+  "storyTime.mixed": "混合",
+  "storyTime.mixedTime": "混合时间",
 };

package.json

@@ -32,7 +32,8 @@
     "test:i18n-dom": "node tests/i18n-dom.mjs",
     "test:i18n-boundary": "node tests/i18n-boundary.mjs",
     "test:i18n-status": "node tests/i18n-status.mjs",
-    "test:i18n": "npm run test:i18n-catalog && npm run test:i18n-dom && npm run test:i18n-boundary && npm run test:i18n-status",
+    "test:ui-label-formatter": "node tests/ui-label-formatter.mjs",
+    "test:i18n": "npm run test:i18n-catalog && npm run test:i18n-dom && npm run test:i18n-boundary && npm run test:i18n-status && npm run test:ui-label-formatter",
     "bench:graph-layout": "node tests/perf/graph-layout-bench.mjs",
     "bench:persist-delta": "node tests/perf/persist-delta-bench.mjs",
     "bench:persist-load": "node tests/perf/persist-load-bench.mjs",

tests/ui-label-formatter.mjs

@@ -0,0 +1,88 @@
+import assert from "node:assert/strict";
+
+import { setLocale } from "../i18n/index.js";
+import {
+  uiBuildRegionLine,
+  uiBuildScopeMetaText,
+  uiDescribeStoryTimeSpanDisplay,
+  uiMemoryNodeTypeClass,
+  uiOwnerTypeLabel,
+  uiScopeBadgeText,
+  uiTypeLabel,
+} from "../ui/ui-label-formatter.js";
+
+setLocale("zh-CN");
+assert.equal(uiTypeLabel("event"), "事件");
+assert.equal(uiTypeLabel("pov_memory"), "主观记忆");
+assert.equal(uiTypeLabel("custom_type"), "custom_type");
+assert.equal(uiTypeLabel(""), "—");
+assert.equal(uiMemoryNodeTypeClass("character"), "type-character");
+assert.equal(uiMemoryNodeTypeClass("pov_memory"), "type-character");
+assert.equal(uiMemoryNodeTypeClass("event"), "type-event");
+assert.equal(uiOwnerTypeLabel("user"), "用户");
+assert.equal(uiOwnerTypeLabel("character"), "角色");
+assert.equal(
+  uiScopeBadgeText({ layer: "pov", ownerType: "character", ownerName: "艾琳" }),
+  "角色 POV · 艾琳",
+);
+assert.equal(
+  uiScopeBadgeText({ layer: "objective", regionPrimary: "钟楼" }),
+  "客观 · 钟楼",
+);
+assert.equal(
+  uiBuildRegionLine({
+    regionPrimary: "钟楼",
+    regionPath: ["王城", "钟楼"],
+    regionSecondary: ["地下室"],
+  }),
+  "主地区: 钟楼 | 地区路径: 王城 / 钟楼 | 次级地区: 地下室",
+);
+assert.equal(uiDescribeStoryTimeSpanDisplay({ mixed: true }), "混合时间");
+assert.equal(
+  uiDescribeStoryTimeSpanDisplay({ startLabel: "第一章", endLabel: "第二章", mixed: true }),
+  "第一章 → 第二章 · 混合",
+);
+assert.equal(
+  uiBuildScopeMetaText({
+    scope: { layer: "pov", ownerType: "user", ownerName: "玩家" },
+    storyTimeSpan: { startLabel: "第一章", mixed: true },
+  }),
+  "用户 POV: 玩家 · 剧情时间: 第一章 · 混合",
+);
+
+setLocale("en-US");
+assert.equal(uiTypeLabel("event"), "Event");
+assert.equal(uiTypeLabel("pov_memory"), "POV Memory");
+assert.equal(uiOwnerTypeLabel("user"), "User");
+assert.equal(uiOwnerTypeLabel("character"), "Character");
+assert.equal(
+  uiScopeBadgeText({ layer: "pov", ownerType: "character", ownerName: "Eileen" }),
+  "Character POV · Eileen",
+);
+assert.equal(
+  uiScopeBadgeText({ layer: "objective", regionPrimary: "Clocktower" }),
+  "Objective · Clocktower",
+);
+assert.equal(
+  uiBuildRegionLine({
+    regionPrimary: "Clocktower",
+    regionPath: ["Capital", "Clocktower"],
+    regionSecondary: ["Basement"],
+  }),
+  "Primary region: Clocktower | Region path: Capital / Clocktower | Secondary regions: Basement",
+);
+assert.equal(uiDescribeStoryTimeSpanDisplay({ mixed: true }), "Mixed time");
+assert.equal(
+  uiDescribeStoryTimeSpanDisplay({ startLabel: "Chapter 1", endLabel: "Chapter 2", mixed: true }),
+  "Chapter 1 → Chapter 2 · mixed",
+);
+assert.equal(
+  uiBuildScopeMetaText({
+    scope: { layer: "pov", ownerType: "user", ownerName: "Player" },
+    storyTimeSpan: { startLabel: "Chapter 1", mixed: true },
+  }),
+  "User POV: Player · Story time: Chapter 1 · mixed",
+);
+
+setLocale("zh-CN");
+console.log("ui label formatter tests passed");

ui/panel.js

@@ -13,8 +13,6 @@ import {
 } from "./panel-ena-sections.js";
 import { getNodeDisplayName } from "../graph/node-labels.js";
 import {
-  buildRegionLine,
-  buildScopeBadgeText,
   normalizeMemoryScope,
 } from "../graph/memory-scope.js";
 import { listKnowledgeOwners } from "../graph/knowledge-state.js";
@@ -72,6 +70,15 @@ import {
   setLocale,
   t,
 } from "../i18n/index.js";
+import {
+  normalizeOwnerUiType,
+  uiBuildScopeMetaText,
+  uiBuildRegionLine,
+  uiMemoryNodeTypeClass,
+  uiOwnerTypeLabel,
+  uiScopeBadgeText,
+  uiTypeLabel,
+} from "./ui-label-formatter.js";
 
 let defaultPromptCache = null;
 
@@ -2726,24 +2733,6 @@ function _refreshTaskTimeline() {
 
 // ---------- Memory Browser (Master-Detail) ----------
 
-function _getMemoryNodeTypeClass(type) {
-  switch (type) {
-    case "pov_memory":
-    case "character":
-      return "type-character";
-    case "event":
-      return "type-event";
-    case "location":
-      return "type-location";
-    case "rule":
-      return "type-rule";
-    case "thread":
-      return "type-thread";
-    default:
-      return "type-default";
-  }
-}
-
 function _parseFloorFilter(raw) {
   const text = String(raw || "").trim();
   if (!text) return null;
@@ -2917,13 +2906,13 @@ function _refreshTaskMemoryBrowser() {
   const listItems = sorted.map((node) => {
     const sel = node.id === currentSelectedMemoryNodeId ? "selected" : "";
     const preview = _getNodeSnippet(node);
-    const scopeBadge = buildScopeBadgeText(node.scope);
+    const scopeBadge = uiScopeBadgeText(node.scope);
     const metaText = _buildScopeMetaText(node);
     const displayName = getNodeDisplayName(node);
     return `
       <div class="bme-memory-node-item ${sel}" data-node-id="${_escHtml(node.id)}">
         <div class="bme-memory-node-item__header">
-          <span class="bme-memory-node-item__type ${_getMemoryNodeTypeClass(node.type)}">${_escHtml(_typeLabel(node.type))}</span>
+          <span class="bme-memory-node-item__type ${uiMemoryNodeTypeClass(node.type)}">${_escHtml(uiTypeLabel(node.type))}</span>
           <span class="bme-memory-node-item__imp">IMP: ${typeof node.importance === "number" ? node.importance.toFixed(1) : "—"}</span>
         </div>
         <div class="bme-memory-node-item__title">${_escHtml(displayName)}</div>
@@ -3016,12 +3005,12 @@ function _renderTaskMemoryDetailPanel(detailEl, node, graph) {
       (e?.fromId === node.id || e?.toId === node.id),
   );
   const detailSummary = _getNodeSnippet(node);
-  const scopeBadge = buildScopeBadgeText(node.scope);
+  const scopeBadge = uiScopeBadgeText(node.scope);
   const displayName = getNodeDisplayName(node);
   const writeBlocked = _isGraphWriteBlocked();
   const disabledAttr = writeBlocked ? " disabled" : "";
   const badges = [
-    node.type ? `<span class="bme-memory-node-item__type ${_getMemoryNodeTypeClass(node.type)}">${_escHtml(_typeLabel(node.type))}</span>` : "",
+    node.type ? `<span class="bme-memory-node-item__type ${uiMemoryNodeTypeClass(node.type)}">${_escHtml(uiTypeLabel(node.type))}</span>` : "",
     scopeBadge ? `<span class="bme-memory-node-item__type type-default">${_escHtml(scopeBadge)}</span>` : "",
     node.archived ? '<span class="bme-memory-node-item__type type-default">ARCHIVED</span>' : "",
   ].filter(Boolean).join("");
@@ -3111,9 +3100,9 @@ function _openMemoryPopup(node, graph) {
   if (!popup || !bodyEl) return;
 
   const displayName = getNodeDisplayName(node);
-  const scopeBadge = buildScopeBadgeText(node.scope);
+  const scopeBadge = uiScopeBadgeText(node.scope);
   const badges = [
-    node.type ? `<span class="bme-memory-node-item__type ${_getMemoryNodeTypeClass(node.type)}">${_escHtml(_typeLabel(node.type))}</span>` : "",
+    node.type ? `<span class="bme-memory-node-item__type ${uiMemoryNodeTypeClass(node.type)}">${_escHtml(uiTypeLabel(node.type))}</span>` : "",
     scopeBadge ? `<span class="bme-memory-node-item__type type-default">${_escHtml(scopeBadge)}</span>` : "",
     node.archived ? '<span class="bme-memory-node-item__type type-default">ARCHIVED</span>' : "",
   ].filter(Boolean).join("");
@@ -4006,13 +3995,6 @@ function _ownerAvatarHsl(name) {
   return `hsl(${hue}, 55%, 42%)`;
 }
 
-function _normalizeOwnerUiType(ownerType = "") {
-  const normalized = String(ownerType || "").trim();
-  if (normalized === "user") return "user";
-  if (normalized === "character") return "character";
-  return "";
-}
-
 function _inferOwnerTypeFromKey(ownerKey = "") {
   const normalizedOwnerKey = String(ownerKey || "").trim().toLowerCase();
   if (normalizedOwnerKey.startsWith("user:")) return "user";
@@ -4020,13 +4002,6 @@ function _inferOwnerTypeFromKey(ownerKey = "") {
   return "";
 }
 
-function _getOwnerTypeDisplayLabel(ownerType = "") {
-  const normalizedType = _normalizeOwnerUiType(ownerType);
-  if (normalizedType === "user") return "用户";
-  if (normalizedType === "character") return "角色";
-  return "Owner";
-}
-
 function _buildOwnerCollisionIndex(owners = []) {
   const collisionIndex = new Map();
   for (const owner of Array.isArray(owners) ? owners : []) {
@@ -4034,7 +4009,7 @@ function _buildOwnerCollisionIndex(owners = []) {
       String(owner?.ownerName || owner?.ownerKey || "未命名角色").trim() ||
       "未命名角色";
     const nameKey = baseName.toLocaleLowerCase("zh-Hans-CN");
-    const ownerType = _normalizeOwnerUiType(owner?.ownerType) || "unknown";
+    const ownerType = normalizeOwnerUiType(owner?.ownerType) || "unknown";
     const entry = collisionIndex.get(nameKey) || {
       count: 0,
       typeCounts: new Map(),
@@ -4058,8 +4033,8 @@ function _getOwnerDisplayInfo(owner = {}, collisionIndex = null) {
     "未命名角色";
   const ownerKey = String(owner?.ownerKey || "").trim();
   const ownerType =
-    _normalizeOwnerUiType(owner?.ownerType) || _inferOwnerTypeFromKey(ownerKey);
-  const typeLabel = _getOwnerTypeDisplayLabel(ownerType);
+    normalizeOwnerUiType(owner?.ownerType) || _inferOwnerTypeFromKey(ownerKey);
+  const typeLabel = uiOwnerTypeLabel(ownerType);
   const collisionInfo =
     collisionIndex instanceof Map
       ? collisionIndex.get(baseName.toLocaleLowerCase("zh-Hans-CN")) || null
@@ -5282,7 +5257,7 @@ function _renderRecentList(elementId, items) {
 
     const badge = document.createElement("span");
     badge.className = `bme-type-badge ${_safeCssToken(item.type)}`;
-    badge.textContent = _typeLabel(item.type);
+    badge.textContent = uiTypeLabel(item.type);
     li.appendChild(badge);
 
     const content = document.createElement("div");
@@ -5393,11 +5368,11 @@ function _refreshMemoryBrowser() {
 
     const badge = document.createElement("span");
     badge.className = `bme-type-badge ${_safeCssToken(node.type)}`;
-    badge.textContent = _typeLabel(node.type);
+    badge.textContent = uiTypeLabel(node.type);
 
     const scopeChip = document.createElement("span");
     scopeChip.className = "bme-memory-scope-chip";
-    scopeChip.textContent = buildScopeBadgeText(node.scope);
+    scopeChip.textContent = uiScopeBadgeText(node.scope);
 
     head.append(badge, scopeChip);
 
@@ -6076,9 +6051,9 @@ function _describeStoryTimeSpanDisplay(storyTimeSpan = {}) {
       : normalized.startLabel || normalized.endLabel || "";
 
   if (!label) {
-    return normalized.mixed ? "混合时间" : "";
+    return normalized.mixed ? t("storyTime.mixedTime") : "";
   }
-  return normalized.mixed ? `${label} · 混合` : label;
+  return normalized.mixed ? `${label} · ${t("storyTime.mixed")}` : label;
 }
 
 function _describeNodeStoryTimeDisplay(node = {}) {
@@ -6208,11 +6183,11 @@ function _buildNodeDetailEditorFragment(raw, { idPrefix = "bme-detail" } = {}) {
   const fragment = document.createDocumentFragment();
   const inputId = (suffix) => `${idPrefix}-${suffix}`;
 
-  _appendNodeDetailReadOnly(fragment, "类型", _typeLabel(raw.type));
+  _appendNodeDetailReadOnly(fragment, "类型", uiTypeLabel(raw.type));
   _appendNodeDetailReadOnly(
     fragment,
     "作用域",
-    buildScopeBadgeText(raw.scope),
+    uiScopeBadgeText(raw.scope),
   );
   _appendNodeDetailReadOnly(fragment, "ID", raw.id || "—");
   _appendNodeDetailReadOnly(
@@ -6228,7 +6203,7 @@ function _buildNodeDetailEditorFragment(raw, { idPrefix = "bme-detail" } = {}) {
       `${scope.ownerType || "unknown"} / ${scope.ownerName || scope.ownerId || "—"}`,
     );
   }
-  const regionLine = buildRegionLine(scope);
+  const regionLine = uiBuildRegionLine(scope);
   if (regionLine) {
     _appendNodeDetailReadOnly(fragment, "地区", regionLine);
   }
@@ -14843,18 +14818,7 @@ function _matchesMemoryFilter(node, filter = "all") {
 }
 
 function _buildScopeMetaText(node) {
-  const scope = normalizeMemoryScope(node?.scope);
-  const parts = [];
-  if (scope.layer === "pov") {
-    parts.push(
-      `${scope.ownerType === "user" ? "用户 POV" : "角色 POV"}: ${scope.ownerName || scope.ownerId || "未命名"}`,
-    );
-  }
-  const regionLine = buildRegionLine(scope);
-  if (regionLine) parts.push(regionLine);
-  const storyTime = _describeNodeStoryTimeDisplay(node);
-  if (storyTime) parts.push(`剧情时间: ${storyTime}`);
-  return parts.join(" · ");
+  return uiBuildScopeMetaText(node);
 }
 
 /** 记忆列表等指标：避免浮点误差打出 9.499999999999998 */
@@ -14878,20 +14842,6 @@ function _formatMemoryInt(value, fallback = 0) {
   return String(Math.trunc(x));
 }
 
-function _typeLabel(type) {
-  const map = {
-    character: "角色",
-    event: "事件",
-    location: "地点",
-    thread: "主线",
-    rule: "规则",
-    synopsis: "全局概要（旧）",
-    reflection: "反思",
-    pov_memory: "主观记忆",
-  };
-  return map[type] || type || "—";
-}
-
 function _getNodeSnippet(node) {
   const fields = node.fields || {};
   const storyTime = _describeNodeStoryTimeDisplay(node);

ui/ui-label-formatter.js

@@ -0,0 +1,145 @@
+// UI-only label formatting for ST-BME.
+//
+// Keep this module on the frontend boundary: these labels are translated for
+// human-facing UI only. Do not import it from prompt/model/persistence paths.
+
+import { normalizeMemoryScope } from "../graph/memory-scope.js";
+import {
+  normalizeStoryTime,
+  normalizeStoryTimeSpan,
+} from "../graph/story-timeline.js";
+import { t } from "../i18n/index.js";
+
+const UI_MEMORY_SCOPE_LAYER = Object.freeze({
+  OBJECTIVE: "objective",
+  POV: "pov",
+});
+
+const UI_MEMORY_SCOPE_OWNER_TYPE = Object.freeze({
+  CHARACTER: "character",
+  USER: "user",
+});
+
+export function uiMemoryNodeTypeClass(type) {
+  switch (type) {
+    case "pov_memory":
+    case "character":
+      return "type-character";
+    case "event":
+      return "type-event";
+    case "location":
+      return "type-location";
+    case "rule":
+      return "type-rule";
+    case "thread":
+      return "type-thread";
+    default:
+      return "type-default";
+  }
+}
+
+export function uiTypeLabel(type) {
+  const normalized = String(type || "").trim();
+  if (!normalized) return "—";
+  const key = `memory.type.${normalized}`;
+  const translated = t(key);
+  return translated === key ? normalized : translated;
+}
+
+export function normalizeOwnerUiType(ownerType = "") {
+  const normalized = String(ownerType || "").trim();
+  if (normalized === "user") return "user";
+  if (normalized === "character") return "character";
+  return "";
+}
+
+export function uiOwnerTypeLabel(ownerType = "") {
+  const normalizedType = normalizeOwnerUiType(ownerType);
+  if (normalizedType === "user") return t("scope.owner.user");
+  if (normalizedType === "character") return t("scope.owner.character");
+  return "Owner";
+}
+
+export function uiScopeBadgeText(scope) {
+  const normalized = normalizeMemoryScope(scope);
+  if (normalized.layer === UI_MEMORY_SCOPE_LAYER.POV) {
+    const ownerLabel = normalized.ownerName || normalized.ownerId || "POV";
+    return normalized.ownerType === UI_MEMORY_SCOPE_OWNER_TYPE.USER
+      ? t("scope.badge.userPov", { owner: ownerLabel })
+      : t("scope.badge.characterPov", { owner: ownerLabel });
+  }
+  return normalized.regionPrimary
+    ? t("scope.badge.objectiveRegion", { region: normalized.regionPrimary })
+    : t("scope.badge.objectiveGlobal");
+}
+
+export function uiBuildRegionLine(scope) {
+  const normalized = normalizeMemoryScope(scope);
+  const regionPath = Array.isArray(normalized.regionPath)
+    ? normalized.regionPath.filter(Boolean)
+    : [];
+  const regionSecondary = Array.isArray(normalized.regionSecondary)
+    ? normalized.regionSecondary.filter(Boolean)
+    : [];
+  const parts = [];
+  if (normalized.regionPrimary) {
+    parts.push(t("scope.region.primary", { region: normalized.regionPrimary }));
+  }
+  if (regionPath.length > 0) {
+    parts.push(t("scope.region.path", { path: regionPath.join(" / ") }));
+  }
+  if (regionSecondary.length > 0) {
+    parts.push(t("scope.region.secondary", { regions: regionSecondary.join(", ") }));
+  }
+  return parts.join(" | ");
+}
+
+export function uiDescribeStoryTimeDisplay(storyTime = {}) {
+  const normalized = normalizeStoryTime(storyTime);
+  const parts = [];
+  if (normalized.arc) parts.push(normalized.arc);
+  if (normalized.chapter) parts.push(normalized.chapter);
+  if (normalized.scene) parts.push(normalized.scene);
+  return parts.join(" / ");
+}
+
+export function uiDescribeStoryTimeSpanDisplay(storyTimeSpan = {}) {
+  const normalized = normalizeStoryTimeSpan(storyTimeSpan);
+  const label =
+    normalized.startLabel &&
+    normalized.endLabel &&
+    normalized.startLabel !== normalized.endLabel
+      ? `${normalized.startLabel} → ${normalized.endLabel}`
+      : normalized.startLabel || normalized.endLabel || "";
+
+  if (!label) {
+    return normalized.mixed ? t("storyTime.mixedTime") : "";
+  }
+  return normalized.mixed ? `${label} · ${t("storyTime.mixed")}` : label;
+}
+
+export function uiDescribeNodeStoryTimeDisplay(node = {}) {
+  return (
+    uiDescribeStoryTimeDisplay(node.storyTime) ||
+    uiDescribeStoryTimeSpanDisplay(node.storyTimeSpan) ||
+    ""
+  );
+}
+
+export function uiBuildScopeMetaText(node = {}) {
+  const scope = normalizeMemoryScope(node?.scope);
+  const parts = [];
+  if (scope.layer === UI_MEMORY_SCOPE_LAYER.POV) {
+    const ownerLabel = scope.ownerName || scope.ownerId || t("scope.owner.unnamed");
+    parts.push(
+      scope.ownerType === UI_MEMORY_SCOPE_OWNER_TYPE.USER
+        ? t("scope.meta.userPov", { owner: ownerLabel })
+        : t("scope.meta.characterPov", { owner: ownerLabel }),
+    );
+  }
+  const regionLine = uiBuildRegionLine(scope);
+  if (regionLine) parts.push(regionLine);
+  const storyTime = uiDescribeNodeStoryTimeDisplay(node);
+  if (storyTime) parts.push(t("storyTime.meta", { time: storyTime }));
+  return parts.join(" · ");
+}