feat: track shielded send txids via z_viewtransaction

Extract txids from completed z_sendmany operations and store in
send_txids_ so pure shielded sends are discoverable. The network
thread includes them in the enrichment set, calls z_viewtransaction,
caches results in viewtx_cache_, and removes them from send_txids_.

src/app.cpp

@@ -564,13 +564,26 @@ void App::update()
                     };
                 }
             }
-            return [this, done, anySuccess]() {
+            // Extract txids from successful operations so shielded
+            // sends are discoverable by z_viewtransaction.
+            std::vector<std::string> successTxids;
+            for (const auto& op : result) {
+                if (op.value("status", "") == "success"
+                    && op.contains("result") && op["result"].contains("txid")) {
+                    successTxids.push_back(op["result"]["txid"].get<std::string>());
+                }
+            }
+            return [this, done, anySuccess,
+                    successTxids = std::move(successTxids)]() {
                 for (const auto& id : done) {
                     pending_opids_.erase(
                         std::remove(pending_opids_.begin(), pending_opids_.end(), id),
                         pending_opids_.end());
                 }
                 if (anySuccess) {
+                    for (const auto& txid : successTxids) {
+                        send_txids_.insert(txid);
+                    }
                     // Transaction confirmed by daemon — force immediate data refresh
                     transactions_dirty_ = true;
                     addresses_dirty_ = true;

src/app.h

@@ -494,6 +494,12 @@ private:
     float opid_poll_timer_ = 0.0f;
     static constexpr float OPID_POLL_INTERVAL = 2.0f;
 
+    // Txids from completed z_sendmany operations.
+    // Ensures shielded sends are discoverable by z_viewtransaction
+    // even when they don't appear in listtransactions or
+    // z_listreceivedbyaddress.
+    std::unordered_set<std::string> send_txids_;
+
     // First-run wizard state
     WizardPhase wizard_phase_ = WizardPhase::None;
     std::unique_ptr<util::Bootstrap> bootstrap_;

src/app_network.cpp

@@ -437,6 +437,9 @@ void App::refreshData()
     // Snapshot viewtx cache for the worker thread
     auto viewtxCacheSnap = viewtx_cache_;
 
+    // Snapshot send txids so the worker can include them in enrichment
+    auto sendTxidsSnap = send_txids_;
+
     // Single consolidated worker task — all RPC calls happen back-to-back
     // on a single thread with no inter-task queue overhead.
     worker_->post([this, doAddresses, doPeers, doEncrypt, doTransactions,
@@ -444,7 +447,8 @@ void App::refreshData()
                    fullyEnriched = std::move(fullyEnriched),
                    cachedConfirmedTxns = std::move(cachedConfirmedTxns),
                    cachedConfirmedIds = std::move(cachedConfirmedIds),
-                   viewtxCacheSnap = std::move(viewtxCacheSnap)]() -> rpc::RPCWorker::MainCb {
+                   viewtxCacheSnap = std::move(viewtxCacheSnap),
+                   sendTxidsSnap = std::move(sendTxidsSnap)]() -> rpc::RPCWorker::MainCb {
         // ================================================================
         // Phase 1: Balance + blockchain info
         // ================================================================
@@ -596,6 +600,13 @@ void App::refreshData()
                 }
             }
 
+            // Include txids from completed z_sendmany operations so that
+            // pure shielded sends (which don't appear in listtransactions
+            // or z_listreceivedbyaddress) are discoverable.
+            for (const auto& txid : sendTxidsSnap) {
+                knownTxids.insert(txid);
+            }
+
             // Phase 3c: detect shielded sends via z_viewtransaction
             // Check the in-memory viewtx cache first; only make RPC calls
             // for txids we haven't seen before.
@@ -858,6 +869,8 @@ void App::refreshData()
                 // Merge new z_viewtransaction results into the persistent cache
                 for (auto& [txid, entry] : newViewTxEntries) {
                     viewtx_cache_[txid] = std::move(entry);
+                    // Once cached, no need to keep in send_txids_
+                    send_txids_.erase(txid);
                 }
 
                 // Rebuild confirmed transaction cache: txns with >= 10