✨ Pages management in site detail

lib/models/site_file.dart

@@ -0,0 +1,25 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'site_file.freezed.dart';
+part 'site_file.g.dart';
+
+@freezed
+sealed class SnSiteFileEntry with _$SnSiteFileEntry {
+  const factory SnSiteFileEntry({
+    required bool isDirectory,
+    required String relativePath,
+    required int size, // Size in bytes (0 for directories)
+    required DateTime modified, // ISO 8601 timestamp
+  }) = _SnSiteFileEntry;
+
+  factory SnSiteFileEntry.fromJson(Map<String, dynamic> json) =>
+      _$SnSiteFileEntryFromJson(json);
+}
+
+@freezed
+sealed class SnFileContent with _$SnFileContent {
+  const factory SnFileContent({required String content}) = _SnFileContent;
+
+  factory SnFileContent.fromJson(Map<String, dynamic> json) =>
+      _$SnFileContentFromJson(json);
+}