feat(chat): integrate fast mode toggle into generation controls dropdown (#1093)

app/src/main/res/values-ar/strings.xml

@@ -1031,6 +1031,9 @@
 <string name="channels_expiry_format">ينتهي في: %1$s</string>
 <string name="channels_search_placeholder">البحث في القنوات…</string>
 <string name="chat_attach_file">إرفاق ملف</string>
+<string name="chat_fast_mode_label">سريع</string>
+<string name="chat_fast_mode_desc">الوضع السريع</string>
+<string name="chat_fast_mode_unavailable">الوضع السريع غير مدعوم لهذا النموذج</string>
 <string name="chat_save_attachment">حفظ %1$s</string>
 <string name="chat_switch_model_title">تبديل النموذج (لهذه المحادثة)</string>
 <string name="config_clear_value">مسح القيمة</string>

app/src/main/res/values-ko/strings.xml

@@ -883,4 +883,7 @@
     <string name="subagent_status_cancelled">취소됨</string>
     <string name="subagent_status_failed">실패</string>
     <string name="subagent_duration">%1$.1f초</string>
+    <string name="chat_fast_mode_label">빠름</string>
+    <string name="chat_fast_mode_desc">빠른 모드</string>
+    <string name="chat_fast_mode_unavailable">이 모델에서는 빠른 모드를 사용할 수 없습니다</string>
 </resources>

app/src/main/res/values-zh/strings.xml

@@ -1022,6 +1022,9 @@
     <string name="channels_expiry_format">过期时间：%1$s</string>
     <string name="channels_search_placeholder">搜索渠道…</string>
     <string name="chat_attach_file">附加文件</string>
+    <string name="chat_fast_mode_label">快速</string>
+    <string name="chat_fast_mode_desc">快速模式</string>
+    <string name="chat_fast_mode_unavailable">此模型不支持快速模式</string>
     <string name="chat_save_attachment">保存 %1$s</string>
     <string name="chat_switch_model_title">切换模型（当前对话）</string>
     <string name="config_clear_value">清除值</string>

app/src/main/res/values/strings.xml

@@ -1158,6 +1158,9 @@
     <string name="channels_expiry_format">Expires: %1$s</string>
     <string name="channels_search_placeholder">Search channels…</string>
     <string name="chat_attach_file">Attach file</string>
+    <string name="chat_fast_mode_label">Fast</string>
+    <string name="chat_fast_mode_desc">Fast mode</string>
+    <string name="chat_fast_mode_unavailable">Fast mode unavailable for this model</string>
     <string name="chat_save_attachment">Save %1$s</string>
     <string name="chat_switch_model_title">Switch model (this chat)</string>
     <string name="config_clear_value">Clear value</string>