Add search domain support for Tailscale DNS

docs/configuration/dns/server/tailscale.md

@@ -2,6 +2,10 @@
 icon: material/new-box
 ---
 
+!!! quote "Changes in sing-box 1.14.0"
+
+    :material-plus: [accept_search_domain](#accept_search_domain)
+
 !!! question "Since sing-box 1.12.0"
 
 # Tailscale
@@ -17,7 +21,8 @@ icon: material/new-box
         "tag": "",
 
         "endpoint": "ts-ep",
-        "accept_default_resolvers": false
+        "accept_default_resolvers": false,
+        "accept_search_domain": false
       }
     ]
   }
@@ -38,6 +43,14 @@ Indicates whether default DNS resolvers should be accepted for fallback queries
 
 if not enabled, `NXDOMAIN` will be returned for non-Tailscale domain queries.
 
+#### accept_search_domain
+
+!!! question "Since sing-box 1.14.0"
+
+When enabled, single-label queries (e.g. `my-device`) are retried against each Tailscale search domain until one resolves.
+
+Default resolvers are not consulted for single-label queries regardless of `accept_default_resolvers`.
+
 ### Examples
 
 === "MagicDNS only"

docs/configuration/dns/server/tailscale.zh.md

@@ -2,6 +2,10 @@
 icon: material/new-box
 ---
 
+!!! quote "sing-box 1.14.0 中的更改"
+
+    :material-plus: [accept_search_domain](#accept_search_domain)
+
 !!! question "自 sing-box 1.12.0 起"
 
 # Tailscale
@@ -17,7 +21,8 @@ icon: material/new-box
         "tag": "",
 
         "endpoint": "ts-ep",
-        "accept_default_resolvers": false
+        "accept_default_resolvers": false,
+        "accept_search_domain": false
       }
     ]
   }
@@ -38,6 +43,14 @@ icon: material/new-box
 
 如果未启用，对于非 Tailscale 域名查询将返回 `NXDOMAIN`。
 
+#### accept_search_domain
+
+!!! question "自 sing-box 1.14.0 起"
+
+启用后，单标签查询（例如 `my-device`）将依次附加 Tailscale 搜索域进行重试，直到其中一个解析成功。
+
+对于单标签查询，无论 `accept_default_resolvers` 是否启用，都不会使用默认 DNS 解析器。
+
 ### 示例
 
 === "仅 MagicDNS"