[fix(web)] localize copied task-stats line instead of hardcoded Chinese (#8)

packages/web/src/features/chat/task-stats-line.tsx

@@ -71,7 +71,16 @@ export function TaskStatsLine({
 
   const copy = () => {
     const text =
-      assistantText?.trim() || stats === null ? (assistantText ?? "") : formatTaskStats(stats);
+      assistantText?.trim() || stats === null
+        ? (assistantText ?? "")
+        : formatTaskStats(stats, {
+            stats: S.chat.statsLabel,
+            input: S.chat.statInput,
+            cached: S.chat.statCached,
+            output: S.chat.statOutput,
+            parenOpen: S.chat.statParenOpen,
+            parenClose: S.chat.statParenClose,
+          });
     void navigator.clipboard?.writeText(text).then(() => {
       setCopied(true);
       setTimeout(() => setCopied(false), 1500);

packages/web/src/lib/omni/task-stats.ts

@@ -287,17 +287,34 @@ export function endTask(t: TaskStatsTracker, elapsedMs: number): TaskStats | nul
   return stats;
 }
 
+/** Localized labels for {@link formatTaskStats} (supplied by the view layer's active dictionary). */
+export interface TaskStatsLabels {
+  /** Row prefix, e.g. "Stats" / "统计信息". */
+  stats: string;
+  /** Input-tokens label, e.g. "Input tokens" / "输入 tokens". */
+  input: string;
+  /** Cached-amount label, e.g. "cached" / "已缓存". */
+  cached: string;
+  /** Output-tokens label, e.g. "Output tokens" / "输出 tokens". */
+  output: string;
+  /** Opening wrapper before the cached amount — keeps per-locale typography (e.g. " (" / "（"). */
+  parenOpen: string;
+  /** Closing wrapper after the cached amount (e.g. ")" / "）"). */
+  parenClose: string;
+}
+
 /**
  * Stats row text (copy fallback / used when there's no body text): same basis as the stats row —
  * this round's usage "input tokens (including cached amount) · output tokens · output TPS", e.g.
- * `[统计信息] 输入 tokens 4k（已缓存 3k） · 输出 tokens 1.2k · 42.5 tok/s`; label can be overridden
- * per UI locale.
+ * `[Stats] Input tokens 4k (cached 3k) · Output tokens 1.2k · 42.5 tok/s`. Labels (including the
+ * parenthesis wrappers) come from the caller's active locale dictionary, so the copied text keeps
+ * per-locale typography — ASCII `(…)` in English, fullwidth `（…）` in Chinese.
  */
-export function formatTaskStats(s: TaskStats, label = "统计信息"): string {
+export function formatTaskStats(s: TaskStats, labels: TaskStatsLabels): string {
   const b = s.tokensByBucket;
   return (
-    `[${label}] 输入 tokens ${humanizeTokens(b.cacheRead + b.cacheWrite)}（已缓存 ${humanizeTokens(b.cacheRead)}）` +
-    ` · 输出 tokens ${humanizeTokens(b.output)}` +
+    `[${labels.stats}] ${labels.input} ${humanizeTokens(b.cacheRead + b.cacheWrite)}${labels.parenOpen}${labels.cached} ${humanizeTokens(b.cacheRead)}${labels.parenClose}` +
+    ` · ${labels.output} ${humanizeTokens(b.output)}` +
     ` · ${formatTps(s.outputTps)}`
   );
 }

packages/web/src/lib/strings-en.ts

@@ -609,8 +609,12 @@ When done, open index.html in a browser and self-test once.`,
     statCost: "Cost",
     statElapsed: "Elapsed",
     statInput: "Input tokens",
+    statCached: "cached",
     statOutput: "Output tokens",
     statTps: "Output TPS",
+    /** Copied-stats-line parenthesis wrappers around the cached amount (ASCII with a leading space for en). */
+    statParenOpen: " (",
+    statParenClose: ")",
     noSessions: "No Sessions yet",
     emptyStream: "Send a message to start the conversation",
     historyLoadFailed: "Failed to load history",

packages/web/src/lib/strings.ts

@@ -589,8 +589,12 @@ Penguin 视觉风格（见 web-design 技能），深色/浅色主题（<html da
     statCost: "成本",
     statElapsed: "用时",
     statInput: "输入 tokens",
+    statCached: "已缓存",
     statOutput: "输出 tokens",
     statTps: "输出 TPS",
+    /** Copied-stats-line parenthesis wrappers around the cached amount (fullwidth for zh typography). */
+    statParenOpen: "（",
+    statParenClose: "）",
     noSessions: "还没有 Session",
     emptyStream: "发送一条消息开始对话",
     historyLoadFailed: "历史消息加载失败",