fix(azure_speech): 修复多中文变体时错误启用讯飞ASR的问题

当配置的语言列表包含两个或以上的中文变体（如 zh-CN 和 zh-TW）时，即使所有语言都在讯飞支持范围内，也应禁用讯飞ASR，因为讯飞无法同时处理多个中文方言。此修改在决定是否启用讯飞ASR的条件中增加了对多中文变体的检查。

local_plugins/azure_speech/android/src/main/kotlin/com/yunqiinnovation/azure_speech/AzureAsrHelper.kt

@@ -135,7 +135,16 @@ class AzureAsrHelper(private val context: Context) {
       val xunfeiConfigReady = this.xunfeiAppId.isNotBlank() &&
           this.xunfeiAccessKeyId.isNotBlank() &&
           this.xunfeiAccessKeySecret.isNotBlank()
-      this.useXunfei = supportedLanguages.all { it == "zh-CN" || it == "en-US" || it == "zh-HK"|| it == "zh-TW" } && xunfeiConfigReady
+      val onlySupportedByXunfei = supportedLanguages.all {
+        it == "zh-CN" || it == "en-US" || it == "zh-HK" || it == "zh-TW"
+      }
+      val chineseVariantsCount = supportedLanguages
+        .map { it.trim().lowercase() }
+        .filter { it == "zh" || it.startsWith("zh-") }
+        .distinct()
+        .size
+      val hasMultipleChineseVariants = chineseVariantsCount >= 2
+      this.useXunfei = onlySupportedByXunfei && xunfeiConfigReady && !hasMultipleChineseVariants
 
       // 根据支持的语言数量决定是否启用自动语言检测
       this.isAutoDetectLanguage = supportedLanguages.size >= 2

local_plugins/azure_speech/ios/azure_speech/Sources/azure_speech/AzureAsrHelper.swift

@@ -131,10 +131,17 @@ public class AzureAsrHelper: NSObject {
             let xunfeiConfigReady =
                 !self.xunfeiAppId.isEmpty && !self.xunfeiAccessKeyId.isEmpty
                 && !self.xunfeiAccessKeySecret.isEmpty
+            let onlySupportedByXunfei = supportedLanguages.allSatisfy {
+                $0 == "zh-CN" || $0 == "en-US" || $0 == "zh-HK" || $0 == "zh-TW"
+            }
+            let chineseVariants = Set(
+                supportedLanguages
+                    .map { $0.trimmingCharacters(in: .whitespacesAndNewlines).lowercased() }
+                    .filter { $0 == "zh" || $0.hasPrefix("zh-") }
+            )
+            let hasMultipleChineseVariants = chineseVariants.count >= 2
             self.useXunfei =
-                supportedLanguages.allSatisfy {
-                    $0 == "zh-CN" || $0 == "en-US" || $0 == "zh-HK" || $0 == "zh-TW"
-                } && xunfeiConfigReady
+                onlySupportedByXunfei && xunfeiConfigReady && !hasMultipleChineseVariants
 
             os_log(
                 "ASR helper initialize: supportedLanguages=%{public}@, audioSourceType=%{public}@, xunfeiConfigured=%{public}@, provider=%{public}@",
@@ -1246,4 +1253,3 @@ private class AudioDataCallbackProxy: SimpleAudioReceiver.AudioDataCallback {
         xunfeiCallback?(data)
     }
 }
-