fix(ui): show real data and consistent values across tabs

- Market chart now plots the real accumulated price_history instead of a
  rand()-generated curve; the hover tooltip no longer claims a specific "Xh ago"
  price and the x-axis only labels the truthful "Now" point. Falls back to the
  existing empty state until there are >=2 real samples.
- Transactions summary cards exclude autoshield legs (same txid send + receive-to-z)
  so a shield isn't double-counted into both Sent and Received, matching the list.
- Send/Receive sync banners use verification_progress like every other surface,
  instead of the blocks/headers ratio that over-reports during early sync.
- Fix printf format/type mismatches: %.0f<-int (market % shielded), %d<-size_t
  (peer counts), %ld<-int64_t (peer byte counters, wrong on Windows).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/ui/windows/transactions_tab.cpp

@@ -164,7 +164,30 @@ void RenderTransactionsTab(App* app)
         int recvCount = 0, sendCount = 0, minedCount = 0;
         double recvTotal = 0.0, sendTotal = 0.0, minedTotal = 0.0;
 
-        for (const auto& tx : state.transactions) {
+        // Identify autoshield legs (same txid with a "send" leg and a "receive"-to-z leg):
+        // that pair is a single internal shielding move — shown as one "Shield" row in the
+        // list below — not income or spending. Counting both legs double-counts the amount
+        // into BOTH the Sent and Received totals, so the cards disagree with the list.
+        // Mirror the list's pairing logic and exclude both legs from the totals.
+        std::unordered_map<std::string, std::vector<size_t>> summaryTxidMap;
+        for (size_t i = 0; i < state.transactions.size(); i++)
+            summaryTxidMap[state.transactions[i].txid].push_back(i);
+        std::vector<bool> isShieldLeg(state.transactions.size(), false);
+        for (const auto& kv : summaryTxidMap) {
+            if (kv.second.size() < 2) continue;
+            int send_i = -1, recv_i = -1;
+            for (size_t si : kv.second) {
+                const auto& stx = state.transactions[si];
+                if (stx.type == "send" && send_i < 0) send_i = (int)si;
+                else if (stx.type == "receive" && recv_i < 0 &&
+                         !stx.address.empty() && stx.address[0] == 'z') recv_i = (int)si;
+            }
+            if (send_i >= 0 && recv_i >= 0) { isShieldLeg[send_i] = true; isShieldLeg[recv_i] = true; }
+        }
+
+        for (size_t i = 0; i < state.transactions.size(); i++) {
+            if (isShieldLeg[i]) continue;  // internal shielding move — not received or sent
+            const auto& tx = state.transactions[i];
             if (tx.type == "receive") {
                 recvCount++;
                 recvTotal += std::abs(tx.amount);