chore: do not deobfuscate known top level domains with 2 or 3 characters

jadx-core/src/main/java/jadx/core/deobf/Deobfuscator.java

@@ -581,6 +581,7 @@ private void processPackageFull(PackageNode pkg, String fullName) {
 		if (!pkg.hasAlias()) {
 			String pkgName = pkg.getName();
 			if ((args.isDeobfuscationOn() && shouldRename(pkgName))
+					&& (pkg.getParentPackage() != rootPackage || !TldHelper.contains(pkgName)) // check if first level is a valid tld
 					|| (args.isRenameValid() && !NameMapper.isValidIdentifier(pkgName))
 					|| (args.isRenamePrintable() && !NameMapper.isAllCharsPrintable(pkgName))) {
 				String pkgAlias = String.format("p%03d%s", pkgIndex++, prepareNamePart(pkg.getName()));

jadx-core/src/main/java/jadx/core/deobf/TldHelper.java

@@ -0,0 +1,38 @@
+package jadx.core.deobf;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.HashSet;
+import java.util.Set;
+
+import jadx.core.utils.exceptions.JadxRuntimeException;
+
+/**
+ * Provides a list of all top level domains with 3 characters and less,
+ * so we can exclude them from deobfuscation.
+ */
+public class TldHelper {
+
+	private static final Set<String> TLD_SET = loadTldFile();
+
+	private static Set<String> loadTldFile() {
+		Set<String> tldNames = new HashSet<>();
+		try (BufferedReader reader = new BufferedReader(new InputStreamReader(Deobfuscator.class.getResourceAsStream("tld_3.txt")))) {
+			String line;
+			while ((line = reader.readLine()) != null) {
+				line = line.trim();
+				if (!line.startsWith("#") && !line.isEmpty()) {
+					tldNames.add(line);
+				}
+			}
+			return tldNames;
+		} catch (Exception e) {
+			throw new JadxRuntimeException("Failed to load top level domain list tld_3.txt", e);
+		}
+	}
+
+	public static boolean contains(String name) {
+		return TLD_SET.contains(name);
+	}
+
+}