fix: restore light node rewards and persist pending rewards across restarts

- Fix light node reward processing in process_reward_window_internal (Path 1):
  merge reward_light_nodes into all_summaries alongside reward_heartbeats,
  matching the existing correct behavior in the receiver/sync path (Path 4)

- Fix light node reward processing in MacroBlock creator path (Path 3):
  same merge of reward_light_nodes, ensuring the creator node calculates
  identical rewards to all receiver nodes (full determinism across all paths)

- Add RocksDB persistence for pending rewards in Path 3 (creator) and
  Path 4 (receiver/sync): save_pending_reward called after every emission
  MacroBlock so rewards survive node restarts

- Add startup recovery from state snapshot: if RocksDB pending_rewards is
  empty (pre-v3.35 nodes that never persisted), recover baseline amounts
  from state snapshot accounts and immediately seed RocksDB for future restarts

- Fix missing next_ping_time and next_ping_window in already_registered
  response for light nodes (both state check and gossip registry check),
  preventing undefined ping timer after wallet restore on mobile

- Fix duplicate node registration for Super nodes in handle_register_node:
  check storage.get_nodes_by_wallet upfront and return already_registered
  response instead of creating a new registration TX

- Fix clock drift handling in HealthPing: decouple signature verification
  from message age check so last_block_height is always updated on valid sig

- Drop consensus messages during fast sync when local node is far behind
  network height to prevent invalid block reports

Made-with: Cursor

Author: AIQnetLab

applications/qnet-mobile/src/components/WalletManager.js

@@ -5883,14 +5883,19 @@ export class WalletManager {
         await AsyncStorage.setItem(`node_next_ping_${activationCode}`, registrationResult.next_ping_time.toString());
       }
 
+      const alreadyRegistered = !!(registrationResult && registrationResult.already_registered);
+
       return {
         success: true,
+        alreadyRegistered,
         nodeType,
         pseudonym: (registrationResult && registrationResult.node_id) || systemPseudonym,
         burnTxHash: burnTxHash || null,
-        message: registrationResult
-          ? 'Node successfully activated and registered in blockchain'
-          : 'Node activation saved locally. Network registration will retry automatically.',
+        message: alreadyRegistered
+          ? (registrationResult.message || 'Node already registered. Your existing node has been restored.')
+          : registrationResult
+            ? 'Node successfully activated and registered in blockchain'
+            : 'Node activation saved locally. Network registration will retry automatically.',
         nextPingTime: registrationResult ? registrationResult.next_ping_time : null,
         nextPingWindow: registrationResult ? registrationResult.next_ping_window : null,
         quantumSecured,

applications/qnet-mobile/src/screens/WalletScreen.js

@@ -1768,19 +1768,29 @@ const WalletScreen = () => {
           burnTxHash: result.burnTxHash || 'registered',
           walletAddress: wallet.qnetAddress || wallet.address
         }));
-        
-        // Start automatic ping interval (every 4 hours)
-        // No automatic ping interval
-        
-        showAlert(
-          'Node Activated!',
-          `Your ${result.nodeType || 'light'} node has been successfully activated and registered in the network.\n\nNode ID: ${activationInputCode.trim()}\nSystem ID: ${result.pseudonym}`,
-          [{ text: 'OK', onPress: () => {
-            setShowActivationInput(false);
-            setActivationInputCode('');
-            loadNodeRewards();
-          }}]
-        );
+
+        if (result.alreadyRegistered) {
+          // Node was already on-chain — just restore it locally, no new TX
+          showAlert(
+            'Node Restored!',
+            `Your existing ${nodeType} node has been successfully restored.\n\nNode ID: ${activationInputCode.trim()}\nSystem ID: ${result.pseudonym}`,
+            [{ text: 'OK', onPress: () => {
+              setShowActivationInput(false);
+              setActivationInputCode('');
+              loadNodeRewards();
+            }}]
+          );
+        } else {
+          showAlert(
+            'Node Activated!',
+            `Your ${nodeType} node has been successfully activated and registered in the network.\n\nNode ID: ${activationInputCode.trim()}\nSystem ID: ${result.pseudonym}`,
+            [{ text: 'OK', onPress: () => {
+              setShowActivationInput(false);
+              setActivationInputCode('');
+              loadNodeRewards();
+            }}]
+          );
+        }
       } else {
         throw new Error(result.error || 'Failed to activate node');
       }