feat(wallet): new/import wallets + multi-wallet i18n (P3)

Completes the wallet-files dialog and localizes the feature.

- Create a new wallet: a name is normalized to wallet-<name>.dat and opened
  via switchToWallet; the daemon mints it (seed-backed, -usemnemonic=1) on
  first load. Rejects blank names + name collisions.
- Import: out-of-datadir wallets get an Import action that copies the file
  into the datadir (never overwriting) under a wallet-*.dat name, then opens
  it — the daemon only loads plain filenames from the datadir.
- i18n: the 32 new multi-wallet / per-wallet-contacts / mining-payout strings
  translated into all 8 languages (de/es/fr/ja/ko/pt/ru/zh), CJK subset font
  rebuilt. Verified: the Chinese Wallets dialog renders with no missing glyphs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

res/lang/zh.json

@@ -218,6 +218,9 @@
     "console_welcome": "欢迎使用 ObsidianDragon 控制台",
     "console_zoom_in": "放大",
     "console_zoom_out": "缩小",
+    "contact_global": "在每个钱包中显示（全局联系人）",
+    "contact_global_badge_tt": "全局联系人——在每个钱包中可见",
+    "contact_global_tt": "开启：无论您加载哪个钱包，此联系人都保持可见。关闭：它仅属于当前钱包。",
     "copied": "已复制！",
     "copy": "复制",
     "copy_address": "复制完整地址",
@@ -489,6 +492,7 @@
     "mining_on": "挖矿已开启",
     "mining_open_in_explorer": "在浏览器中打开",
     "mining_payout_address": "支付地址",
+    "mining_payout_foreign": "⚠ 此支付地址不在您当前的钱包中——挖矿奖励将进入另一个钱包。如果您切换过钱包，请更新它。",
     "mining_payout_tooltip": "接收挖矿奖励的地址",
     "mining_pool": "矿池",
     "mining_pool_hashrate": "矿池算力",
@@ -967,6 +971,7 @@
     "tt_ui_opacity": "卡片和侧边栏不透明度（100%% = 完全不透明，越低越透明）",
     "tt_validate": "检查 DragonX 地址是否有效",
     "tt_verbose": "将详细连接诊断、守护进程状态\\n和端口所有者信息记录到控制台选项卡",
+    "tt_wallets_button": "列出您的钱包文件并在它们之间切换",
     "tt_website": "打开 DragonX 网站",
     "tt_window_opacity": "背景不透明度（越低 = 桌面透过窗口可见）",
     "tt_wizard": "重新运行初始设置向导\\n守护进程将被重启",
@@ -1012,6 +1017,33 @@
     "wallet": "钱包",
     "wallet_empty": "您的钱包是空的",
     "wallet_empty_hint": "切换到接收页面获取您的地址并开始接收资金。",
+    "wallets_active": "活跃",
+    "wallets_add": "添加文件夹",
+    "wallets_add_folder": "同时扫描另一个文件夹中的钱包文件：",
+    "wallets_button": "钱包…",
+    "wallets_col_addresses": "地址",
+    "wallets_col_balance": "余额",
+    "wallets_col_name": "钱包",
+    "wallets_col_opened": "上次打开",
+    "wallets_col_size": "大小",
+    "wallets_create": "创建钱包",
+    "wallets_creating": "正在创建钱包——节点将重启…",
+    "wallets_current": "当前",
+    "wallets_exists": "已存在同名钱包。",
+    "wallets_folder_hint": "/含 .dat 钱包文件的文件夹路径",
+    "wallets_folder_invalid": "该文件夹不存在。",
+    "wallets_import": "导入",
+    "wallets_import_failed": "无法导入该钱包文件。",
+    "wallets_import_hint": "导入以打开",
+    "wallets_import_tt": "此钱包位于数据目录之外。打开它会先将其复制进来（即将推出）。",
+    "wallets_imported": "钱包已导入——正在切换…",
+    "wallets_intro": "位于您数据目录（以及您添加的任何文件夹）中的钱包文件。打开一个即可切换——节点将重启以加载它，且每个钱包各自保留其数据。",
+    "wallets_name_invalid": "请输入有效的钱包名称。",
+    "wallets_never": "从未",
+    "wallets_new_hint": "名称（例如 savings）",
+    "wallets_new_label": "创建新钱包：",
+    "wallets_open": "打开",
+    "wallets_title": "钱包",
     "warning": "警告",
     "warning_upper": "警告！",
     "website": "网站",