Merge branch 'mqy20260511' of http://114.215.146.132:3000/Mqy/Wisdom-Data into mqy20260511

iot-platform/src/main/java/com/iot/platform/service/TDengineService.java

     private final Map<String, Set<String>> stableColumnCache = new ConcurrentHashMap<>();
     private static final int MAX_CACHE_SIZE = 1000;
 
-    // 允许的列名字符
-    private static final String ALLOWED_COLUMNS = "^[a-zA-Z_][a-zA-Z0-9_]*$";
+    // 允许的列名字符（支持中文、字母、数字、下划线）
+    private static final String ALLOWED_COLUMNS = "^[a-zA-Z_][a-zA-Z0-9_一-龥]*$";
 
     // TDengine 超级表最大列数限制
     private static final int MAX_COLUMNS_PER_STABLE = 4096;