feat(invite): add AddToWalletButton component

Wraps @premieroctet/react-native-wallet to orchestrate fetch-token-then-addPass
on iOS and fetch-JWT-then-addPassWithSignedJwt on Android. Guards on IS_WEB,
handle validity, and canAddPasses(). Fires invite:action:wallet metric on press.

package.json

@@ -124,6 +124,7 @@
     "@ipld/dag-cbor": "^9.2.7",
     "@lingui/core": "^5.9.2",
     "@lingui/react": "^5.9.2",
+    "@premieroctet/react-native-wallet": "^1.0.2",
     "@react-native-async-storage/async-storage": "2.2.0",
     "@react-navigation/bottom-tabs": "^7.15.5",
     "@react-navigation/native": "^7.1.33",