feat(vpn): add VPN DNS mode configuration with systemd-resolved integration#562
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…ration Add VPN DNS mode selector to control how VPN DNS servers interact with system DNS resolution, supporting three modes: Not Set, Secondary, and Preferred. DNS mode is applied via systemd-resolved D-Bus API in a dedicated worker thread with Polkit authorization. 新增 VPN DNS 模式配置，支持"不设置/作为备选/作为首选"三种模式， 通过 systemd-resolved D-Bus API 在独立 Worker 线程中应用 DNS 路由， 并使用 Polkit 进行权限认证。 Log: 新增 VPN DNS 模式配置功能 PMS: BUG-355287 Influence: VPN 连接时用户可选择 DNS 解析策略（首选/备选/不设置），影响 VPN 内网域名解析和全局 DNS 走向。
robertkill
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Jun 12, 2026
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Add VPN DNS mode selector to control how VPN DNS servers interact with system DNS resolution, supporting three modes: Not Set, Secondary, and Preferred. DNS mode is applied via systemd-resolved D-Bus API in a dedicated worker thread with Polkit authorization.
新增 VPN DNS 模式配置，支持"不设置/作为备选/作为首选"三种模式，
通过 systemd-resolved D-Bus API 在独立 Worker 线程中应用 DNS 路由， 并使用 Polkit 进行权限认证。
Log: 新增 VPN DNS 模式配置功能
PMS: BUG-355287
Influence: VPN 连接时用户可选择 DNS 解析策略（首选/备选/不设置），影响 VPN 内网域名解析和全局 DNS 走向。