refactor: 完成全站国际化改造，统一多语言支持

此提交完成了全项目的国际化适配：
1. 新增多语言翻译文件与基础配置
2. 替换所有硬编码文本为i18n调用
3. 优化语言切换与文档语言同步逻辑
4. 重构部分业务逻辑以支持动态翻译
5. 移除过时代码与硬编码配置

src/features/hall/hall-wallet-strip.tsx

@@ -2,6 +2,7 @@
 
 import { Wallet } from "lucide-react";
 import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { useTranslation } from "react-i18next";
 
 import { getWalletBalance } from "@/api/wallet";
 import { Skeleton } from "@/components/ui/skeleton";
@@ -18,6 +19,7 @@ import type { WalletBalanceData } from "@/types/api/wallet-balance";
 export function HallWalletStrip() {
   const profile = usePlayerSessionStore((s) => s.profile);
   const mode = useNetworkConnectionStore((s) => s.mode);
+  const { t } = useTranslation("player");
   const [balance, setBalance] = useState<WalletBalanceData | null>(null);
   const [loading, setLoading] = useState(true);
   const degradedWalletPollRef = useRef<number | null>(null);
@@ -83,7 +85,7 @@ export function HallWalletStrip() {
   const availableMinor = Number(balance?.available_balance ?? 0);
 
   return (
-    <section className="mb-4 space-y-3" aria-label="Wallet balance">
+    <section className="mb-4 space-y-3" aria-label={t("wallet.balance")}>
       <div
         className={cn(
           "relative overflow-hidden rounded-xl bg-[#e5002c] px-4 py-4 text-white shadow-[0_10px_28px_rgba(229,0,44,0.25)]",
@@ -95,7 +97,7 @@ export function HallWalletStrip() {
             <Wallet className="size-7" aria-hidden />
           </div>
           <div className="min-w-0 flex-1">
-            <p className="text-sm font-semibold text-white/90">Wallet Balance</p>
+            <p className="text-sm font-semibold text-white/90">{t("wallet.balance")}</p>
             {loading ? (
               <Skeleton className="mt-2 h-8 w-44 rounded-md bg-white/25" />
             ) : (
@@ -111,7 +113,7 @@ export function HallWalletStrip() {
         <TransferInDialog
           idPrefix="hall-"
           triggerVariant="hall"
-          triggerLabel="Transfer In"
+          triggerLabel={t("wallet.transferIn")}
           triggerClassName="h-12 rounded-lg text-base font-bold"
           currency={currency}
           lotteryMinor={lotteryMinor}
@@ -120,7 +122,7 @@ export function HallWalletStrip() {
         <TransferOutDialog
           idPrefix="hall-"
           triggerVariant="hall"
-          triggerLabel="Transfer Out"
+          triggerLabel={t("wallet.transferOut")}
           triggerClassName="h-12 rounded-lg text-base font-bold"
           currency={currency}
           availableMinor={availableMinor}