Add DNS respond rule action

docs/configuration/dns/rule.md

@@ -497,6 +497,8 @@ Enable response-based matching. When enabled, this rule matches against DNS resp
 (set by a preceding [`evaluate`](/configuration/dns/rule_action/#evaluate) action)
 instead of only matching the original query.
 
+The saved response can also be returned directly by a later [`respond`](/configuration/dns/rule_action/#respond) action.
+
 Required for Response Match Fields (`response_rcode`, `response_answer`, `response_ns`, `response_extra`).
 Also required for `ip_cidr` and `ip_is_private` when used with `evaluate` or Response Match Fields.
 
@@ -616,6 +618,8 @@ Match any IP with query response.
 Match fields for DNS response data. Require `match_response` to be set to `true`
 and a preceding rule with [`evaluate`](/configuration/dns/rule_action/#evaluate) action to populate the response.
 
+That saved response may also be returned directly by a later [`respond`](/configuration/dns/rule_action/#respond) action.
+
 #### response_rcode
 
 Match DNS response code.

docs/configuration/dns/rule.zh.md

@@ -495,6 +495,8 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 
 启用响应匹配。启用后，此规则将匹配 DNS 响应数据（由前序 [`evaluate`](/zh/configuration/dns/rule_action/#evaluate) 动作设置），而不仅是匹配原始查询。
 
+该已保存的响应也可以被后续的 [`respond`](/zh/configuration/dns/rule_action/#respond) 动作直接返回。
+
 响应匹配字段（`response_rcode`、`response_answer`、`response_ns`、`response_extra`）需要此选项。
 当与 `evaluate` 或响应匹配字段一起使用时，`ip_cidr` 和 `ip_is_private` 也需要此选项。
 
@@ -615,6 +617,8 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 DNS 响应数据的匹配字段。需要将 `match_response` 设为 `true`，
 且需要前序规则使用 [`evaluate`](/zh/configuration/dns/rule_action/#evaluate) 动作来填充响应。
 
+该已保存的响应也可以被后续的 [`respond`](/zh/configuration/dns/rule_action/#respond) 动作直接返回。
+
 #### response_rcode
 
 匹配 DNS 响应码。

docs/configuration/dns/rule_action.md

@@ -2,6 +2,10 @@
 icon: material/new-box
 ---
 
+!!! quote "Changes in sing-box 1.14.0"
+
+    :material-plus: [respond](#respond)
+
 !!! quote "Changes in sing-box 1.14.0"
 
     :material-plus: [evaluate](#evaluate)  
@@ -108,6 +112,22 @@ If value is an IP address instead of prefix, `/32` or `/128` will be appended au
 
 Will override `dns.client_subnet`.
 
+### respond
+
+!!! question "Since sing-box 1.14.0"
+
+```json
+{
+  "action": "respond"
+}
+```
+
+`respond` terminates rule evaluation and returns the DNS response previously saved by a preceding [`evaluate`](/configuration/dns/rule_action/#evaluate) action.
+
+This action does not send a new DNS query and has no extra options.
+
+Only allowed after a preceding top-level `evaluate` rule. If the action is reached without a saved response at runtime, the request fails with an error instead of falling through to later rules.
+
 ### route-options
 
 ```json

docs/configuration/dns/rule_action.zh.md

@@ -2,6 +2,10 @@
 icon: material/new-box
 ---
 
+!!! quote "sing-box 1.14.0 中的更改"
+
+    :material-plus: [respond](#respond)
+
 !!! quote "sing-box 1.14.0 中的更改"
 
     :material-plus: [evaluate](#evaluate)  
@@ -106,6 +110,22 @@ icon: material/new-box
 
 将覆盖 `dns.client_subnet`.
 
+### respond
+
+!!! question "自 sing-box 1.14.0 起"
+
+```json
+{
+  "action": "respond"
+}
+```
+
+`respond` 会终止规则评估，并直接返回前序 [`evaluate`](/zh/configuration/dns/rule_action/#evaluate) 动作保存的 DNS 响应。
+
+此动作不会发起新的 DNS 查询，也没有额外选项。
+
+只能用于前面已有顶层 `evaluate` 规则的场景。如果运行时命中该动作时没有已保存的响应，则请求会直接返回错误，而不是继续匹配后续规则。
+
 ### route-options
 
 ```json