feat(migration): auto-refresh DAPI nodes during pre-1.0 migration

CHANGELOG.md

@@ -8,6 +8,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ### Added
 
+- **Automatic Platform node refresh during upgrades**: migrating a pre-1.0
+  installation now triggers a best-effort Mainnet or Testnet node refresh.
+  Failed attempts retry on later launches until fresh addresses are saved and
+  the app reconnects, so upgrading users do not need to find the manual action.
+
 - **Search tags in the "Send to" field**: type `type:core`, `type:platform`,
   `type:shielded`, or `wallet:<name>` to narrow the address suggestions
   instead of scrolling through everything; plain words still search like

docs/user-stories.md

@@ -1261,6 +1261,9 @@ As a user, I want to fetch a fresh list of Platform (DAPI) node addresses from D
 - "Refresh DAPI endpoints" action available on Mainnet and Testnet.
 - Confirmation prompt before replacing an existing configured address set.
 - New addresses are persisted to config and the SDK reinitialized without an app restart.
+- A pre-1.0 migration triggers a silent, best-effort Mainnet or Testnet address
+  refresh; failures retry on later launches until addresses are saved, while
+  the manual action keeps its existing success message.
 
 ### NET-017: View live connection status (indicator and Platform endpoints) [Implemented]
 **Persona:** Alex, Priya, Jordan