feat(frontend): add targetStrategy field to the outbound editor

Xray-core added a top-level targetStrategy to OutboundObject that
controls how the destination domain is resolved before dialing
(AsIs/UseIP*/ForceIP*, any protocol). The panel neither offered a
control for it nor preserved the key across the modal's JSON round
trip, so hand-written values were silently dropped on save.

The form now carries targetStrategy next to sendThrough as a select
of the 11 canonical values; the adapter normalizes wire values to
canonical case (the core matches case-insensitively) and omits the
key when unset. Freedom settings additionally read the new
settings-level targetStrategy with domainStrategy as fallback,
mirroring the core, while still emitting the legacy domainStrategy
key so configs keep working on older cores.

internal/web/translation/zh-CN.json

@@ -1549,6 +1549,7 @@
         "localIpPlaceholder": "本地 IP",
         "dialerProxyPlaceholder": "选择要串联的出站",
         "dialerProxyHint": "让此出站通过另一个出站（按标签）拨号，以建立代理链。留空则直接连接。",
+        "targetStrategyHint": "连接前如何解析目标域名：AsIs（默认）原样发送，UseIP… 解析失败时回退，ForceIP… 必须解析成功。",
         "addressRequired": "地址为必填项",
         "portRequired": "端口为必填项",
         "optional": "可选",
@@ -1618,6 +1619,7 @@
         "accountInfo": "帐户信息",
         "outboundStatus": "出站状态",
         "sendThrough": "发送通过",
+        "targetStrategy": "目标解析策略",
         "test": "测试",
         "testResult": "测试结果",
         "testing": "正在测试连接...",