chore: improve geo

src/main/kotlin/app/termora/I18n.kt

@@ -1,6 +1,7 @@
 package app.termora
 
 import org.apache.commons.lang3.LocaleUtils
+import org.apache.commons.lang3.StringUtils
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 import java.util.*
@@ -33,6 +34,13 @@ object I18n : AbstractI18n() {
         return null
     }
 
+    /**
+     * 如果使用 zh_CN 则定义为中国大陆用户，应当优先使用国内服务器
+     */
+    fun isChinaMainland(): Boolean {
+        return StringUtils.equalsIgnoreCase(containsLanguage(Locale.getDefault()), "zh_CN")
+    }
+
     fun getLanguages(): Map<String, String> {
         return supportedLanguages
     }

src/main/kotlin/app/termora/plugin/marketplace/MarketplaceManager.kt

@@ -93,8 +93,12 @@ internal class MarketplaceManager private constructor() {
         val version = Semver.parse(Application.getVersion())
             ?: return emptyList()
 
-        val repositories = PluginRepositoryManager.getInstance().getRepositories().toMutableSet()
-        repositories.add("https://github.com/TermoraDev/termora-marketplace/releases/latest/download/plugins.xml")
+        val repositories = PluginRepositoryManager.getInstance().getRepositories().distinct().toMutableList()
+        if (I18n.isChinaMainland()) {
+            repositories.addFirst("https://plugins.termora.cn/plugins.xml")
+        } else {
+            repositories.addFirst("https://github.com/TermoraDev/termora-marketplace/releases/latest/download/plugins.xml")
+        }
 
         val plugins = mutableListOf<MarketplacePlugin>()
         val executorService = Executors.newVirtualThreadPerTaskExecutor()