feat: consolidate backend and docker-compose setup

lib/core/storage/local_storage.dart

@@ -0,0 +1,62 @@
+import 'package:hive_flutter/hive_flutter.dart';
+import '../../models/document_model.dart';
+
+class LocalStorage {
+  static const String documentBoxName = 'documents_box';
+
+  Future<void> init() async {
+    await Hive.initFlutter();
+    
+    // Note: In a real flutter run with build_runner, you would register adapters here
+    // Hive.registerAdapter(DocumentModelAdapter());
+    // Hive.registerAdapter(DocumentItemAdapter());
+    
+    await Hive.openBox<Map>(documentBoxName); // Using Map directly for scaffold without build_runner generated files
+  }
+
+  Box get documentBox => Hive.box<Map>(documentBoxName);
+
+  Future<void> saveDocument(DocumentModel doc) async {
+    final box = documentBox;
+    await box.put(doc.id, {
+      'id': doc.id,
+      'nama_driver': doc.namaDriver,
+      'nama_penerima': doc.namaPenerima,
+      'created_at': doc.createdAt.toIso8601String(),
+      'latitude': doc.latitude,
+      'longitude': doc.longitude,
+      'header': {
+        'tanggal': doc.tanggal,
+        'no_po': doc.noPo,
+        'no_so': doc.noSo,
+        'no_do': doc.noDo,
+      },
+      'shipment': {
+        'kepada_yth': doc.kepadaYth,
+        'order_untuk': doc.orderUntuk,
+        'alamat': doc.alamat,
+        'plat_truk': doc.platTruk,
+      },
+      'items': doc.items.map((e) => {
+        'nomor_sku': e.nomorSku,
+        'nama_barang': e.namaBarang,
+        'banyak': e.banyak,
+        'jumlah': e.jumlah,
+      }).toList(),
+    });
+  }
+
+  List<DocumentModel> getAllDocuments() {
+    final box = documentBox;
+    final List<DocumentModel> docs = [];
+    for (var key in box.keys) {
+      final data = box.get(key);
+      if (data != null) {
+        docs.add(DocumentModel.fromJson(Map<String, dynamic>.from(data)));
+      }
+    }
+    // Sort descending by creation date
+    docs.sort((a, b) => b.createdAt.compareTo(a.createdAt));
+    return docs;
+  }
+}