fix(shared): i18n coverage and contract updates

- keyPath field no longer tells users to enter a server-side path
- settings.highlight.builtin.* notes, timeout messages in four languages
- prototype-safe dictionary lookup; language as a render-time dependency
- Partial<AppSettings> saveSettings contract, update:stateGet channel

src/shared/i18n/dicts/zh-CN/settings.ts

@@ -92,6 +92,11 @@ const settings: Record<string, string> = {
     '配合全局键可在任何界面唤起/隐藏窗口；若注册失败（与其他软件冲突）则不生效，应用不会报错。',
   'settings.system.shortcutRecording': '按下组合键…',
   'settings.system.shortcutPlaceholder': '点击后按下快捷键，留空禁用',
+  'settings.system.shortcutConflict':
+    '该组合键已被应用内快捷键占用（Ctrl+= / Ctrl+- / Ctrl+0 / Ctrl+PgUp / Ctrl+PgDn），请换一个。',
+  'settings.resetTerminal': '恢复默认终端设置',
+  'settings.resetTerminalTitle': '恢复默认终端设置？',
+  'settings.resetTerminalDesc': '字体、光标、渲染与主题等全部终端设置将恢复为默认值。',
   'settings.highlight.alert':
     '自定义高亮可增强显示效果，但会略微增加性能消耗。规则按优先级顺序应用。PS: 高亮在写入终端时注入颜色，对已有回滚内容不生效',
   'settings.highlight.enabled': '启用',
@@ -115,6 +120,17 @@ const settings: Record<string, string> = {
   'settings.highlight.resetOk': '恢复',
   'settings.highlight.createTitle': '新建高亮规则',
   'settings.highlight.editTitle': '编辑高亮规则',
+  'settings.highlight.builtin.perm': 'Linux 权限与用户',
+  'settings.highlight.builtin.path': 'Linux 文件路径',
+  'settings.highlight.builtin.shellkw': 'Shell 关键字与流程',
+  'settings.highlight.builtin.okstate': '成功状态',
+  'settings.highlight.builtin.badstate': '错误/警告状态',
+  'settings.highlight.builtin.quoted': '字符串与引号',
+  'settings.highlight.builtin.envvar': '环境变量与参数',
+  'settings.highlight.builtin.ipv4': '网络与 IP 地址',
+  'settings.highlight.builtin.datetime': '时间与日期',
+  'settings.highlight.builtin.numbers': '数字与计数',
+  'settings.highlight.builtin.url': '网址链接',
   'settings.theme.accent': '标签强调色',
   'settings.theme.accentDesc': '活动标签边框、侧栏指示条与 SSH 徽章的强调颜色',
   'settings.theme.customBadge': '自定义',