feat(podkop): add DNS Rewrite TTL configuration option

luci-app-podkop/htdocs/luci-static/resources/view/podkop/podkop.js

@@ -697,6 +697,24 @@ return view.extend({
             return true;
         };
 
+        o = s.taboption('additional', form.Value, 'dns_rewrite_ttl', 'DNS Rewrite TTL', 'Time in seconds for DNS record caching (default: 600)');
+        o.default = '600';
+        o.rmempty = false;
+        o.ucisection = 'main';
+
+        o.validate = function (section_id, value) {
+            if (!value) {
+                return 'TTL value cannot be empty';
+            }
+
+            const ttl = parseInt(value);
+            if (isNaN(ttl) || ttl < 0) {
+                return 'TTL must be a positive number';
+            }
+
+            return true;
+        };
+
         o = s.taboption('additional', form.Value, 'cache_file', 'Cache File Path', 'Select or enter path for sing-box cache file');
         o.value('/tmp/cache.db', 'RAM (/tmp/cache.db)');
         o.value('/usr/share/sing-box/cache.db', 'Flash (/usr/share/sing-box/cache.db)');

podkop/files/etc/init.d/podkop

@@ -709,8 +709,13 @@ sing_box_dns() {
 }
 
 sing_box_dns_rule_fakeip() {
-    log "Configure fakeip route in sing-box"
+    local rewrite_ttl
+    config_get rewrite_ttl "main" "dns_rewrite_ttl" "600"
+    
+    log "Configure fakeip route in sing-box and set TTL to $rewrite_ttl seconds"
+    
     jq \
+    --arg ttl "$rewrite_ttl" \
     '.dns += {
         "rules": [
               {
@@ -727,6 +732,8 @@ sing_box_dns_rule_fakeip() {
             },
             {
             "server": "fakeip-server",
+            "domain": "",
+            "rewrite_ttl": ($ttl | tonumber),
             "rule_set": []
             }
         ]
@@ -1854,10 +1861,8 @@ sing_box_add_secure_dns_probe_domain() {
     --arg override "$override_address" \
     '.dns.rules |= map(
         if .server == "fakeip-server" then
-            {
+            . + {
-                "server": .server,
+                "domain": $domain
-                "domain": $domain,
-                "rule_set": .rule_set
             }
         else
             .