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/receive_tab.cpp

@@ -106,8 +106,11 @@ static void TrackNewAddresses(const WalletState& state) {
 static void RenderSyncBanner(const WalletState& state) {
     if (!state.sync.syncing || state.sync.isSynced()) return;
 
-    float syncPct = (state.sync.headers > 0)
-        ? (float)state.sync.blocks / state.sync.headers * 100.0f : 0.0f;
+    // Use the work-weighted verification_progress like every other surface (not the naive
+    // blocks/headers ratio, which over-reports during early sync).
+    double vp = state.sync.verification_progress;
+    if (vp < 0.0) vp = 0.0; else if (vp > 1.0) vp = 1.0;
+    float syncPct = (float)(vp * 100.0);
     char syncBuf[128];
     snprintf(syncBuf, sizeof(syncBuf),
         TR("blockchain_syncing"), syncPct);