Segunda revisión completa: fixes críticos aplicados

- StrictMode solo en DEBUG mode
- ExecutorService con shutdown apropiado
- DNSSetter NetworkCallback unregister
- DiffUtil en ChannelAdapter y EventAdapter
- minifyEnabled=true y shrinkResources=true para release
- Validación en constructores (StreamChannel)
- Strings externalizadas
- ProGuard rules completas
- Testing dependencies agregadas
- Removed Firebase (uso personal)
- JavaDoc documentación agregada
- Android SDK configurado localmente

Compilado exitosamente: StreamPlayer v9.4.2 debug APK (11MB)

dashboard/node_modules/simple-update-notifier/src/cache.ts

@@ -0,0 +1,44 @@
+import os from 'os';
+import path from 'path';
+import fs from 'fs';
+
+const homeDirectory = os.homedir();
+const configDir =
+  process.env.XDG_CONFIG_HOME ||
+  path.join(homeDirectory, '.config', 'simple-update-notifier');
+
+const getConfigFile = (packageName: string) => {
+  return path.join(
+    configDir,
+    `${packageName.replace('@', '').replace('/', '__')}.json`
+  );
+};
+
+export const createConfigDir = () => {
+  if (!fs.existsSync(configDir)) {
+    fs.mkdirSync(configDir, { recursive: true });
+  }
+};
+
+export const getLastUpdate = (packageName: string) => {
+  const configFile = getConfigFile(packageName);
+
+  try {
+    if (!fs.existsSync(configFile)) {
+      return undefined;
+    }
+    const file = JSON.parse(fs.readFileSync(configFile, 'utf8'));
+    return file.lastUpdateCheck as number;
+  } catch {
+    return undefined;
+  }
+};
+
+export const saveLastUpdate = (packageName: string) => {
+  const configFile = getConfigFile(packageName);
+
+  fs.writeFileSync(
+    configFile,
+    JSON.stringify({ lastUpdateCheck: new Date().getTime() })
+  );
+};