i18n 경로 오류 및 placeholder 표시 수정

userfront/lib/core/i18n/toml_asset_loader.dart

@@ -1,22 +1,59 @@
 import 'dart:ui';
 
 import 'package:easy_localization/easy_localization.dart';
-import 'package:flutter/services.dart';
-import 'package:toml/toml.dart';
+
+import '../../i18n_data.dart';
 
 class TomlAssetLoader extends AssetLoader {
   const TomlAssetLoader();
 
   @override
   Future<Map<String, dynamic>> load(String path, Locale locale) async {
-    final assetPath = '$path/${locale.languageCode}.toml';
-    try {
-      final content = await rootBundle.loadString(assetPath);
-      final document = TomlDocument.parse(content);
-      return document.toMap();
-    } catch (e) {
-      // 로딩 실패 시 빈 맵을 반환해 렌더링을 지속합니다.
-      return {};
-    }
+    final languageCode = locale.languageCode.toLowerCase();
+    final source = switch (languageCode) {
+      'ko' => koStrings,
+      'en' => enStrings,
+      _ => enStrings,
+    };
+    return _expandFlatTranslations(source);
   }
 }
+
+Map<String, dynamic> _expandFlatTranslations(Map<String, String> flatMap) {
+  final nested = <String, dynamic>{};
+  for (final entry in flatMap.entries) {
+    final key = entry.key;
+    if (key.isEmpty) {
+      continue;
+    }
+    final segments = key.split('.');
+    Map<String, dynamic> cursor = nested;
+    for (var index = 0; index < segments.length; index++) {
+      final segment = segments[index];
+      if (segment.isEmpty) {
+        continue;
+      }
+      final isLeaf = index == segments.length - 1;
+      if (isLeaf) {
+        cursor[segment] = _normalizeLocalizationValue(entry.value);
+        continue;
+      }
+      final next = cursor.putIfAbsent(segment, () => <String, dynamic>{});
+      if (next is Map<String, dynamic>) {
+        cursor = next;
+        continue;
+      }
+      final replacement = <String, dynamic>{};
+      cursor[segment] = replacement;
+      cursor = replacement;
+    }
+  }
+  return nested;
+}
+
+String _normalizeLocalizationValue(String value) {
+  return value.replaceAllMapped(
+    RegExp(r'\{\{[[:space:]]*([a-zA-Z0-9_]+)[[:space:]]*\}\}'),
+    (match) => '{${match.group(1)}}',
+  );
+}