fix(lite): drop the 15 s startup overlay and a TLS connection per refresh

- The refresh-model mapper marks the encryption state known when the
  backend reports it. The wallet tabs wait for that, so every Lite
  launch sat behind the loading overlay until the 15 s "assume
  unencrypted" fallback.
- Each 2 s refresh skips the backend's `info` (a fresh TLS connection
  and GetLightdInfo, only a fallback for the chat tip, which the
  explicit height call already provides) and the gateway's `height`
  (replaced by that explicit call, which runs after the sync commands
  so it sees the newest block).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/wallet/lite_wallet_controller.cpp

@@ -239,9 +239,12 @@ void applyLiteRefreshModelToWalletState(const LiteWalletAppRefreshModel& model,
     }
 
     if (model.hasEncryptionStatus) {
-        // Reflect backend encryption state so isLocked()/isEncrypted() gate the UI correctly.
+        // Reflect backend encryption state so isLocked()/isEncrypted() gate the UI correctly, and mark
+        // it known: the wallet tabs wait for that, and without it lite always sat behind the loading
+        // overlay until its 15 s "assume unencrypted" fallback.
         state.encrypted = model.encrypted;
         state.locked = model.locked;
+        state.encryption_state_known = true;
     }
 }
 
@@ -744,6 +747,11 @@ std::optional<LiteWalletAppRefreshModel> LiteWalletController::refreshModel()
 
     // Synced: full refresh (balance/addresses/transactions are fast now).
     LiteWalletRefreshRequest request;
+    // Skip `info` (a fresh TLS connection + GetLightdInfo every cycle, and only a fallback for the chat
+    // tip, which the height below already provides) and the gateway's `height` (the explicit call after
+    // the refresh replaces it, and runs after the syncing commands so it sees the newest block).
+    request.includeInfo = false;
+    request.includeHeight = false;
     if (syncResult.ok) {
         request.haveSyncStatus = true;
         request.syncStatus = syncResult.syncStatus;