feat(ui): settings polish — button retune, daemon card, RPC 2-row, chat preview

Settings tabs brought closer to the approved mockup:
- ActionButton/renderCardButton retune (settings-scoped): 7px radius, 9px
  padX, Primary → accent-outline chip, Secondary/card buttons more defined.
- Daemon-binary card: compact status right-aligned on the DAEMON BINARY
  heading (Up to date / Version differs / Not installed), filled/rounded
  status box, neutral danger divider (was alarming red), roomier spacing.
- RPC Connection: two-row column-aligned layout (Host | Port, then
  Username | Password) so the password no longer clips off the card edge.
- Chat settings tab: live conversation preview below the Appearance /
  Messaging cards; "Focus input on open" checkbox reflowed onto the console
  color-toggle row.
- Debug Options: "Current theme only" toggle restricts either screenshot
  sweep to the active theme instead of cycling every skin.
- Tabs fill the full content width (content-max-width cap disabled) and the
  sidebar nav panel centers within the true visible area.
- i18n: new keys for the above (untranslated keys fall back to English).

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

res/lang/zh.json

@@ -74,6 +74,9 @@
     "av_title": "Windows Defender 已阻止矿工程序",
     "available": "可用",
     "backup_backing_up": "正在备份...",
+    "backup_col_backup": "备份",
+    "backup_col_export": "导出",
+    "backup_col_import": "导入与恢复",
     "backup_create": "创建备份",
     "backup_created": "钱包备份已创建",
     "backup_data": "备份与数据",
@@ -423,6 +426,7 @@
     "daemon_bundled": "内置",
     "daemon_install_bundled": "安装内置版本",
     "daemon_installed": "已安装",
+    "daemon_maintenance_label": "维护",
     "daemon_none_bundled": "此版本未内置",
     "daemon_not_installed": "未安装",
     "daemon_status_differ": "已安装的程序文件与内置版本不同。",
@@ -458,6 +462,7 @@
     "daemon_update_verify_note": "在安装前，会根据该版本发布的 SHA-256 和固定的 ed25519 签名对下载内容进行校验。",
     "daemon_update_verifying": "正在验证…",
     "daemon_update_version": "版本：",
+    "daemon_updates_label": "更新",
     "daemon_version": "守护进程",
     "dark": "深色",
     "data_stale_prefix": "更新于",
@@ -1226,6 +1231,7 @@
     "sb_waiting_daemon_err": "等待 dragonxd — %s",
     "sb_warming_up": "正在预热...",
     "sb_witness_cache": "正在重建见证",
+    "scale_effects": "缩放与效果",
     "screenshot_open_dir": "打开位置",
     "screenshot_sweep": "运行截图批处理",
     "screenshot_sweep_desc": "遍历每个标签页的每一种主题，并将每一个的截图保存到配置目录 screenshots 文件夹下的各标签页子文件夹中（覆盖上一次的遍历）。运行几秒钟。",
@@ -1314,12 +1320,12 @@
     "settings": "设置",
     "settings_about_text": "DragonX (DRGX) 屏蔽加密货币钱包，使用 Dear ImGui 构建，提供轻量、便携的体验。",
     "settings_acrylic_level": "亚克力级别：",
-    "settings_address_book": "地址簿...",
+    "settings_address_book": "地址簿…",
     "settings_auto_detected": "从 DRAGONX.conf 自动检测",
     "settings_auto_lock": "自动锁定",
     "settings_auto_shield_desc": "自动将透明资金转移到屏蔽地址",
     "settings_auto_shield_funds": "自动屏蔽透明资金",
-    "settings_backup": "备份...",
+    "settings_backup": "备份…",
     "settings_block_explorer_urls": "区块浏览器网址",
     "settings_builtin": "内置",
     "settings_change_passphrase": "更改密码",
@@ -1341,18 +1347,18 @@
     "settings_encrypt_first_pin": "请先加密钱包以启用 PIN",
     "settings_encrypt_wallet": "加密钱包",
     "settings_explorer_hint": "URL 应包含尾部斜杠。将自动附加 txid/地址。",
-    "settings_export_all": "全部导出...",
-    "settings_export_csv": "导出 CSV...",
-    "settings_export_key": "导出密钥...",
+    "settings_export_all": "全部导出…",
+    "settings_export_csv": "导出 CSV…",
+    "settings_export_key": "导出密钥…",
     "settings_gradient_bg": "渐变背景",
     "settings_gradient_desc": "用平滑渐变替换纹理背景",
     "settings_idle_after": "之后",
-    "settings_import_key": "导入私钥...",
-    "settings_import_viewkey": "导入查看密钥...",
+    "settings_import_key": "导入私钥…",
+    "settings_import_viewkey": "导入查看密钥…",
     "settings_language_note": "注意：部分文本需要重启才能更新",
     "settings_lock_now": "立即锁定",
     "settings_locked": "已锁定",
-    "settings_merge_to_address": "合并到地址...",
+    "settings_merge_to_address": "合并到地址…",
     "settings_noise_opacity": "噪点不透明度：",
     "settings_not_connected": "未连接到守护进程",
     "settings_not_encrypted": "未加密",
@@ -1368,7 +1374,7 @@
     "settings_reloaded": "已从磁盘重新加载设置",
     "settings_remove_encryption": "移除加密",
     "settings_remove_pin": "移除 PIN",
-    "settings_request_payment": "请求付款...",
+    "settings_request_payment": "请求付款…",
     "settings_rescan_desc": "重新扫描区块链以查找丢失的交易",
     "settings_restart_daemon": "重启守护进程",
     "settings_rpc_connection": "RPC 连接",
@@ -1379,13 +1385,13 @@
     "settings_save_shielded_local": "将屏蔽交易历史保存到本地",
     "settings_saved": "设置已保存",
     "settings_set_pin": "设置 PIN",
-    "settings_shield_mining": "屏蔽挖矿...",
+    "settings_shield_mining": "屏蔽挖矿…",
     "settings_solid_colors_desc": "使用纯色代替模糊效果（无障碍功能）",
     "settings_theme_refreshed": "主题列表已刷新",
     "settings_tor_desc": "通过 Tor 路由所有连接以增强隐私",
     "settings_unlocked": "已解锁",
     "settings_use_tor_network": "使用 Tor 进行网络连接",
-    "settings_validate_address": "验证地址...",
+    "settings_validate_address": "验证地址…",
     "settings_visual_effects": "视觉效果",
     "settings_wallet_file_size": "钱包文件大小：%s",
     "settings_wallet_info": "钱包信息",
@@ -1492,6 +1498,7 @@
     "to_upper": "至",
     "tools": "工具",
     "tools_actions": "工具与操作...",
+    "tools_actions_hdr": "工具与操作",
     "total": "合计",
     "total_balance_label": "总余额",
     "transaction_id": "交易 ID",
@@ -1515,7 +1522,7 @@
     "tt_auto_shield": "自动将透明余额转移到屏蔽地址以增强隐私",
     "tt_backup": "创建 wallet.dat 的备份",
     "tt_block_explorer": "在浏览器中打开 DragonX 区块浏览器",
-    "tt_blur": "模糊程度（0%% = 关闭，100%% = 最大）",
+    "tt_blur": "模糊程度（0% = 关闭，100% = 最大）",
     "tt_change_pass": "更改钱包加密密码",
     "tt_change_pin": "更改您的解锁 PIN",
     "tt_chat_bubble_accent": "你发出的消息气泡的强调色（或跟随当前主题）",
@@ -1578,7 +1585,7 @@
     "tt_low_spec": "禁用所有重度视觉效果\\n快捷键：Ctrl+Shift+Down",
     "tt_merge": "将多个 UTXO 合并到一个地址",
     "tt_mine_idle": "系统空闲时自动开始挖矿\\n（无键盘/鼠标输入）",
-    "tt_noise": "颗粒纹理强度（0%% = 关闭，100%% = 最大）",
+    "tt_noise": "颗粒纹理强度（0% = 关闭，100% = 最大）",
     "tt_open_app_dir": "在文件管理器中打开 ObsidianDragon 文件夹（设置、主题、日志）",
     "tt_open_data_dir": "在文件管理器中打开包含您钱包和区块链数据的文件夹",
     "tt_open_dir": "点击在文件管理器中打开",
@@ -1617,7 +1624,7 @@
     "tt_theme_hotkey": "快捷键：Ctrl+左/右箭头切换主题",
     "tt_tor": "通过 Tor 网络路由守护进程连接以实现匿名",
     "tt_tx_url": "在区块浏览器中查看交易的基础 URL",
-    "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_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",
@@ -1829,4 +1836,4 @@
     "your_addresses": "您的地址",
     "z_address": "Z 地址",
     "z_addresses": "Z 地址"
-}
+}