feat(balance): inline period-earnings in the address list and totals

Surfaces the period-earnings aggregator in the Balance tab:
- Toolbar (shared address list): interval pills (1H/1D/1M/1Y), a received-
  vs-net mode toggle, and a global show-all toggle, placed right of "Hide 0
  Balances". The New Z-Address / New mining address buttons move to a footer
  row across from "Showing X of Y" to make room.
- Per address: the row draws its earnings on line 2, left of the $USD value
  (green positive, red negative in net mode), shown when the global toggle
  is on or the address is opted in via a new "Show/Hide earnings" right-click
  item. Works in every layout via the shared list.
- Total: FormatTotalEarnings (gated on the global toggle, so the default
  appearance is unchanged) is wired into the compact hero (dashboard/minimal)
  and the classic layout, left of / beside their USD figure. The remaining
  layouts' totals are not wired yet.
- Settings > Appearance: an "Earnings Display Format" selector (Coin /
  Coin + fiat / Fiat).

New i18n keys are translated into all eight locales; the CJK subset font is
rebuilt for the new glyphs. Builds + test suites pass on both variants.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

res/lang/zh.json

@@ -639,6 +639,11 @@
     "download": "下载",
     "download_bootstrap": "下载引导程序",
     "dragonx_green": "DragonX（绿色）",
+    "earnings_format": "收益显示格式",
+    "earnings_format_coin": "仅代币",
+    "earnings_format_coin_fiat": "代币＋法币",
+    "earnings_format_fiat": "仅法币",
+    "earnings_label": "收益",
     "edit": "编辑",
     "empty_wallet_keys_suffix": "个密钥",
     "empty_wallet_open_manager": "打开钱包管理器",
@@ -942,6 +947,7 @@
     "hidden_tag": " (已隐藏)",
     "hide": "隐藏",
     "hide_address": "隐藏地址",
+    "hide_earnings": "隐藏收益",
     "hide_qr": "隐藏二维码",
     "hide_zero_balances": "隐藏零余额",
     "history": "历史",
@@ -1920,6 +1926,7 @@
     "shielded_type": "屏蔽",
     "shielding_notice": "注意：这将把资金从透明 (T) 地址转移到隐私 (Z) 地址。",
     "show": "显示",
+    "show_earnings": "显示收益",
     "show_hidden": "显示已隐藏 (%d)",
     "show_qr": "显示二维码",
     "show_qr_code": "显示二维码",
@@ -2068,6 +2075,11 @@
     "tt_debug_expand": "展开调试日志选项",
     "tt_delete_blockchain": "删除所有区块链数据并重新同步。wallet.dat 和配置将被保留。",
     "tt_download_bootstrap": "下载区块链引导程序以加速同步\n现有区块数据将被替换",
+    "tt_earn_interval": "收益周期：1H＝本小时，1D＝今天，1M＝本月，1Y＝今年",
+    "tt_earn_mode_inflows": "收益模式：收到的金额（含挖矿）",
+    "tt_earn_mode_net": "收益模式：净额（收到减去发送）",
+    "tt_earn_show_all": "为每个地址显示收益数值",
+    "tt_earnings_format": "按地址和总计的收益数值的显示方式",
     "tt_encrypt": "使用密码加密 wallet.dat",
     "tt_export_all": "将所有私钥导出到文件",
     "tt_export_csv": "将交易历史导出为 CSV 电子表格",