i18n(chat): translate chat note-buffer status strings (8 languages)

The status-bar chat-buffer indicator was hardcoded English. Add semantic keys
(chat_buffer_sending[_one]/preparing/loading/ready) to the English source and
route chatBufferStatusText() through TR()+snprintf like the other counted
strings — a singular/plural pair for the send count, %d/%d for the buffer
fill. Translate all five into de/es/fr/ja/ko/pt/ru/zh (additive JSON edits,
format specifiers preserved so the runtime overlay accepts them), and rebuild
the CJK subset font for the two new glyphs (버퍼's 퍼 U+D37C, 缓冲's 冲 U+51B2).

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

res/lang/de.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "Minimal",
     "chat_bubble_rounded": "Abgerundet",
     "chat_bubble_square": "Eckig",
+    "chat_buffer_loading": "Chat-Puffer: …",
+    "chat_buffer_preparing": "Chat-Puffer: bereite %d/%d vor…",
+    "chat_buffer_ready": "Chat-Puffer: %d/%d bereit",
+    "chat_buffer_sending": "Chat: sende %d Nachrichten…",
+    "chat_buffer_sending_one": "Chat: sende %d Nachricht…",
     "chat_cancel": "Abbrechen",
     "chat_contact_added": "Kontakt hinzugefügt – benenne ihn in Kontakte um",
     "chat_contact_request": "kontaktanfrage",

res/lang/es.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "Mínima",
     "chat_bubble_rounded": "Redondeada",
     "chat_bubble_square": "Cuadrada",
+    "chat_buffer_loading": "Búfer de chat: …",
+    "chat_buffer_preparing": "Búfer de chat: preparando %d/%d…",
+    "chat_buffer_ready": "Búfer de chat: %d/%d listos",
+    "chat_buffer_sending": "Chat: enviando %d mensajes…",
+    "chat_buffer_sending_one": "Chat: enviando %d mensaje…",
     "chat_cancel": "Cancelar",
     "chat_contact_added": "Contacto añadido: renómbralo en Contactos",
     "chat_contact_request": "solicitud de contacto",

res/lang/fr.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "Minimale",
     "chat_bubble_rounded": "Arrondie",
     "chat_bubble_square": "Carrée",
+    "chat_buffer_loading": "Tampon de chat: …",
+    "chat_buffer_preparing": "Tampon de chat: préparation %d/%d…",
+    "chat_buffer_ready": "Tampon de chat: %d/%d prêts",
+    "chat_buffer_sending": "Chat: envoi de %d messages…",
+    "chat_buffer_sending_one": "Chat: envoi de %d message…",
     "chat_cancel": "Annuler",
     "chat_contact_added": "Contact ajouté — renommez-le dans Contacts",
     "chat_contact_request": "demande de contact",

res/lang/ja.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "ミニマル",
     "chat_bubble_rounded": "角丸",
     "chat_bubble_square": "角ばった",
+    "chat_buffer_loading": "チャットバッファ：…",
+    "chat_buffer_preparing": "チャットバッファ：%d/%d を準備中…",
+    "chat_buffer_ready": "チャットバッファ：%d/%d 準備完了",
+    "chat_buffer_sending": "チャット：%d 件のメッセージを送信中…",
+    "chat_buffer_sending_one": "チャット：%d 件のメッセージを送信中…",
     "chat_cancel": "キャンセル",
     "chat_contact_added": "連絡先を追加しました — 連絡先で名前を変更できます",
     "chat_contact_request": "連絡リクエスト",

res/lang/ko.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "미니멀",
     "chat_bubble_rounded": "둥근",
     "chat_bubble_square": "각진",
+    "chat_buffer_loading": "채팅 버퍼: …",
+    "chat_buffer_preparing": "채팅 버퍼: %d/%d 준비 중…",
+    "chat_buffer_ready": "채팅 버퍼: %d/%d 준비됨",
+    "chat_buffer_sending": "채팅: 메시지 %d개 보내는 중…",
+    "chat_buffer_sending_one": "채팅: 메시지 %d개 보내는 중…",
     "chat_cancel": "취소",
     "chat_contact_added": "연락처 추가됨 — 연락처에서 이름을 변경하세요",
     "chat_contact_request": "연락 요청",

res/lang/pt.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "Mínimo",
     "chat_bubble_rounded": "Arredondado",
     "chat_bubble_square": "Quadrado",
+    "chat_buffer_loading": "Buffer de chat: …",
+    "chat_buffer_preparing": "Buffer de chat: preparando %d/%d…",
+    "chat_buffer_ready": "Buffer de chat: %d/%d prontos",
+    "chat_buffer_sending": "Chat: enviando %d mensagens…",
+    "chat_buffer_sending_one": "Chat: enviando %d mensagem…",
     "chat_cancel": "Cancelar",
     "chat_contact_added": "Contato adicionado — renomeie em Contatos",
     "chat_contact_request": "solicitação de contato",

res/lang/ru.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "Минимальный",
     "chat_bubble_rounded": "Скруглённый",
     "chat_bubble_square": "Прямоугольный",
+    "chat_buffer_loading": "Буфер чата: …",
+    "chat_buffer_preparing": "Буфер чата: подготовка %d/%d…",
+    "chat_buffer_ready": "Буфер чата: %d/%d готово",
+    "chat_buffer_sending": "Чат: отправка %d сообщений…",
+    "chat_buffer_sending_one": "Чат: отправка %d сообщения…",
     "chat_cancel": "Отмена",
     "chat_contact_added": "Контакт добавлен — переименуйте его в Контактах",
     "chat_contact_request": "запрос контакта",

res/lang/zh.json

@@ -146,6 +146,11 @@
     "chat_bubble_minimal": "极简",
     "chat_bubble_rounded": "圆角",
     "chat_bubble_square": "方形",
+    "chat_buffer_loading": "聊天缓冲：…",
+    "chat_buffer_preparing": "聊天缓冲：正在准备 %d/%d…",
+    "chat_buffer_ready": "聊天缓冲：%d/%d 已就绪",
+    "chat_buffer_sending": "聊天：正在发送 %d 条消息…",
+    "chat_buffer_sending_one": "聊天：正在发送 %d 条消息…",
     "chat_cancel": "取消",
     "chat_contact_added": "已添加联系人——可在联系人中重命名",
     "chat_contact_request": "联系人请求",