Add release-signing config plugin, README, memory of PWA parity

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

package.json

@@ -36,8 +36,8 @@
   "scripts": {
     "start": "expo start",
     "reset-project": "node ./scripts/reset-project.js",
-    "android": "expo start --android",
-    "ios": "expo start --ios",
+    "android": "expo run:android",
+    "ios": "expo run:ios",
     "web": "expo start --web",
     "lint": "expo lint"
   },