PACKET v1.0.0 - Initial release

App móvil Flutter para capturar contenido multimedia, etiquetarlo con hashes y enviarlo a backends configurables.

Features:
- Captura de fotos, audio, video y archivos
- Sistema de etiquetas con bibliotecas externas (HST)
- Packs de etiquetas predefinidos
- Cola de reintentos (hasta 20 contenedores)
- Soporte GPS
- Hash SHA-256 auto-generado por contenedor
- Persistencia SQLite local
- Múltiples destinos configurables

Stack: Flutter 3.38.5, flutter_bloc, sqflite, dio

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/data/datasources/local_database.dart

@@ -0,0 +1,125 @@
+import 'package:sqflite/sqflite.dart';
+import 'package:path/path.dart';
+
+class LocalDatabase {
+  static Database? _database;
+  static const String _dbName = 'packet.db';
+  static const int _dbVersion = 1;
+
+  static Future<Database> get database async {
+    _database ??= await _initDatabase();
+    return _database!;
+  }
+
+  static Future<Database> _initDatabase() async {
+    final path = join(await getDatabasesPath(), _dbName);
+    return openDatabase(
+      path,
+      version: _dbVersion,
+      onCreate: _onCreate,
+    );
+  }
+
+  static Future<void> _onCreate(Database db, int version) async {
+    await db.execute('''
+      CREATE TABLE registro (
+        hash TEXT PRIMARY KEY,
+        titulo TEXT,
+        hora_envio TEXT NOT NULL,
+        primera_conf TEXT,
+        ultima_conf TEXT,
+        destino_id INTEGER
+      )
+    ''');
+
+    await db.execute('''
+      CREATE TABLE destinos (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        nombre TEXT NOT NULL,
+        url TEXT NOT NULL,
+        hash TEXT NOT NULL,
+        activo INTEGER DEFAULT 1
+      )
+    ''');
+
+    await db.execute('''
+      CREATE TABLE bibliotecas (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        nombre TEXT NOT NULL,
+        url TEXT NOT NULL,
+        endpoint TEXT NOT NULL,
+        h_biblioteca TEXT
+      )
+    ''');
+
+    await db.execute('''
+      CREATE TABLE etiquetas_cache (
+        h_maestro TEXT PRIMARY KEY,
+        h_global TEXT,
+        mrf TEXT,
+        ref TEXT,
+        nombre_es TEXT,
+        nombre_en TEXT,
+        grupo TEXT,
+        biblioteca_id INTEGER
+      )
+    ''');
+
+    await db.execute('''
+      CREATE TABLE packs (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        nombre TEXT NOT NULL,
+        icono TEXT DEFAULT '📦',
+        tags TEXT NOT NULL
+      )
+    ''');
+
+    await db.execute('''
+      CREATE TABLE pendientes (
+        hash TEXT PRIMARY KEY,
+        titulo TEXT,
+        contenido BLOB NOT NULL,
+        intentos INTEGER DEFAULT 0,
+        ultimo_intento TEXT,
+        proximo_intento TEXT,
+        destino_id INTEGER
+      )
+    ''');
+
+    await db.execute('''
+      CREATE TABLE app_state (
+        key TEXT PRIMARY KEY,
+        value TEXT
+      )
+    ''');
+
+    // Insert default HST biblioteca
+    await db.insert('bibliotecas', {
+      'nombre': 'HST',
+      'url': 'https://tzrtech.org',
+      'endpoint': '/api/tags',
+      'h_biblioteca': 'b7149f9e2106c566032aeb29a26e4c6cdd5f5c16b4421025c58166ee345740d1',
+    });
+  }
+
+  // App State methods
+  static Future<void> setState(String key, String value) async {
+    final db = await database;
+    await db.insert(
+      'app_state',
+      {'key': key, 'value': value},
+      conflictAlgorithm: ConflictAlgorithm.replace,
+    );
+  }
+
+  static Future<String?> getState(String key) async {
+    final db = await database;
+    final result = await db.query(
+      'app_state',
+      where: 'key = ?',
+      whereArgs: [key],
+    );
+    if (result.isEmpty) return null;
+    return result.first['value'] as String?;
+  }
+}