Add russia region

lib/data/repository/config_options_store.dart

@@ -90,6 +90,16 @@ List<Rule> rules(RulesRef ref) => switch (ref.watch(regionNotifierProvider)) {
             outbound: RuleOutbound.bypass,
           ),
         ],
+      Region.ru => [
+          const Rule(
+            id: "id",
+            name: "name",
+            enabled: true,
+            domains: "domain:.ru",
+            ip: "geoip:ru",
+            outbound: RuleOutbound.bypass,
+          ),
+        ],
       _ => [],
     };
 

lib/domain/singbox/rules.dart

@@ -61,11 +61,13 @@ enum PerAppProxyMode {
 enum Region {
   ir,
   cn,
+  ru,
   other;
 
   String present(TranslationsEn t) => switch (this) {
         ir => t.settings.general.regions.ir,
         cn => t.settings.general.regions.cn,
+        ru => t.settings.general.regions.ru,
         other => t.settings.general.regions.other,
       };
 }