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/es.json

@@ -639,6 +639,11 @@
     "download": "Descargar",
     "download_bootstrap": "Descargar Bootstrap",
     "dragonx_green": "DragonX (Verde)",
+    "earnings_format": "Formato de visualización de ganancias",
+    "earnings_format_coin": "Solo moneda",
+    "earnings_format_coin_fiat": "Moneda + fíat",
+    "earnings_format_fiat": "Solo fíat",
+    "earnings_label": "Ganancias",
     "edit": "Editar",
     "empty_wallet_keys_suffix": "claves",
     "empty_wallet_open_manager": "Abrir administrador de carteras",
@@ -942,6 +947,7 @@
     "hidden_tag": " (oculto)",
     "hide": "Ocultar",
     "hide_address": "Ocultar dirección",
+    "hide_earnings": "Ocultar ganancias",
     "hide_qr": "Ocultar QR",
     "hide_zero_balances": "Ocultar saldos 0",
     "history": "Historial",
@@ -1920,6 +1926,7 @@
     "shielded_type": "Protegido",
     "shielding_notice": "Nota: Esto blindará fondos de una dirección transparente (T) a una dirección privada (Z).",
     "show": "Mostrar",
+    "show_earnings": "Mostrar ganancias",
     "show_hidden": "Mostrar ocultos (%d)",
     "show_qr": "Mostrar QR",
     "show_qr_code": "Mostrar Código QR",
@@ -2068,6 +2075,11 @@
     "tt_debug_expand": "Expandir opciones de registro de depuración",
     "tt_delete_blockchain": "Eliminar todos los datos de la blockchain e iniciar una nueva sincronización. Se preservan wallet.dat y la configuración.",
     "tt_download_bootstrap": "Descargar bootstrap de blockchain para acelerar la sincronización\nLos datos de bloques existentes serán reemplazados",
+    "tt_earn_interval": "Periodo de ganancias: 1H = esta hora, 1D = hoy, 1M = este mes, 1Y = este año",
+    "tt_earn_mode_inflows": "Modo de ganancias: importes recibidos (incluida la minería)",
+    "tt_earn_mode_net": "Modo de ganancias: neto (recibido menos enviado)",
+    "tt_earn_show_all": "Mostrar la cifra de ganancias para cada dirección",
+    "tt_earnings_format": "Cómo se muestran las cifras de ganancias por dirección y totales",
     "tt_encrypt": "Cifrar wallet.dat con una contraseña",
     "tt_export_all": "Exportar todas las claves privadas a un archivo",
     "tt_export_csv": "Exportar historial de transacciones como hoja de cálculo CSV",