refactor(scanner): more basic work to get the scanner just running

lstMobile/src/lib/delay.ts

@@ -0,0 +1 @@
+export const delay = (ms: number) => new Promise((res) => setTimeout(res, ms));

lstMobile/src/lib/devMode.ts

@@ -0,0 +1,7 @@
+import { delay } from "./delay";
+
+export const devDelay = async (ms: number) => {
+	if (__DEV__) {
+		await delay(ms);
+	}
+};

lstMobile/src/lib/storage.ts

@@ -1,36 +0,0 @@
-
-import AsyncStorage from "@react-native-async-storage/async-storage";
-
-export type AppConfig = {
-  serverUrl: string;
-  scannerId: string;
-};
-
-const CONFIG_KEY = "scanner_app_config";
-
-export async function saveConfig(config: AppConfig) {
-
-  await AsyncStorage.setItem(CONFIG_KEY, JSON.stringify(config));
-}
-
-export async function getConfig(): Promise<AppConfig | null> {
-  const raw = await AsyncStorage.getItem(CONFIG_KEY);
-
-  if (!raw) return null;
-
-  try {
-    return JSON.parse(raw) as AppConfig;
-  } catch (error) {
-    console.log("Error", error)
-    return null;
-  }
-}
-
-export function hasValidConfig(config: AppConfig | null) {
-  if (!config) return false;
-
-  return Boolean(
-    config.serverUrl?.trim() &&
-    config.scannerId?.trim()
-  );
-}