fix(history): show shielding moves as neutral "Shielded", not red "Sent"

A coinbase/transparent→shielded move (often auto-shield) was drawn with a red
"Sent" label and send arrow yet a green "+X" amount — an internally
contradictory row that reads as "money leaving" to anyone who auto-shielded. It
now renders as a neutral "Shielded" row (shield icon + the shielded accent
colour for label and amount), and since a shield is your own funds going
private — not a spend — it's excluded from the Sent card total and the Sent
filter (it merges into one row visible under "All").

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

src/ui/windows/mining_mode_toggle.cpp

@@ -120,7 +120,10 @@ void RenderMiningModeToggle(App* app, const WalletState& state, const MiningInfo
                 CancelMiningBenchmark(app, false);   // don't leave a pool benchmark running after switching to solo (L-11)
                 app->stopPoolMining();
             }
-            if (soloHov) ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
+            if (soloHov) {
+                ImGui::SetMouseCursor(ImGuiMouseCursor_Hand);
+                material::Tooltip("%s", TR("mining_solo_tip"));
+            }
         }
 
         ImGui::SetCursorScreenPos(poolMin);

src/ui/windows/transactions_tab.cpp

@@ -98,7 +98,7 @@ static void DrawTxIcon(ImDrawList* dl, const std::string& type,
     } else if (type == "receive") {
         icon = ICON_MD_CALL_RECEIVED;
     } else if (type == "shield") {
-        icon = ICON_MD_CALL_MADE;
+        icon = ICON_MD_SHIELD;   // a shield, not an outgoing arrow — it's an internal privacy move
     } else {
         icon = ICON_MD_CONSTRUCTION;
     }
@@ -185,6 +185,9 @@ void RenderTransactionsTab(App* app)
     ImU32 greenCol = Success();
     ImU32 redCol   = Error();
     ImU32 goldCol  = Warning();
+    // Neutral colour for a shielding move (your own funds going transparent→private): neither the
+    // red of a spend nor the green of income, so a shield never reads as "money leaving".
+    ImU32 shieldCol = schema::UI().resolveColor("var(--accent-shielded)", OnSurfaceMedium());
     std::string txLoadingText = app->transactionRefreshProgressText();
     bool txLoading = !txLoadingText.empty();
 
@@ -248,11 +251,9 @@ void RenderTransactionsTab(App* app)
                 if (send_i >= 0 && recv_i >= 0) {
                     isShieldLeg[send_i] = true;
                     isShieldLeg[recv_i] = true;
-                    // The list shows the merged shield under the "Sent" filter, so count it there too —
-                    // otherwise the Sent card reads 0 while the Sent list is non-empty. Use the shielded
-                    // (receive-leg) amount, which is what the merged row displays.
-                    sendCount++;
-                    sendTotal += std::abs(state.transactions[recv_i].amount);
+                    // A shield moves your OWN funds transparent→private — it isn't a spend, so it is NOT
+                    // counted toward the Sent card/total (and no longer appears under the Sent filter).
+                    // It merges into one neutral "Shielded" row, visible under "All".
                 }
             }
 
@@ -543,7 +544,7 @@ void RenderTransactionsTab(App* app)
             for (size_t i = 0; i < display_txns.size(); i++) {
                 const auto& dtx = display_txns[i];
                 if (type_filter != 0) {
-                    if (type_filter == 1 && dtx.display_type != "send" && dtx.display_type != "shield") continue;
+                    if (type_filter == 1 && dtx.display_type != "send") continue;   // Sent = real spends; shields aren't sends
                     if (type_filter == 2 && dtx.display_type != "receive") continue;
                     if (type_filter == 3 && dtx.display_type != "generate" && dtx.display_type != "immature" && dtx.display_type != "mined") continue;
                     if (type_filter == 4 && !chatStore.hasChatTxid(dtx.txid)) continue;   // chat-only
@@ -722,7 +723,7 @@ void RenderTransactionsTab(App* app)
                     ImU32 iconCol;
                     const char* typeStr;
                     if (shieldedDisplay) {
-                        iconCol = redCol; typeStr = TR("sent_type");
+                        iconCol = shieldCol; typeStr = TR("shielded_self_type");
                     } else if (tx.display_type == "receive") {
                         iconCol = greenCol; typeStr = TR("recv_type");
                     } else if (tx.display_type == "send") {
@@ -750,7 +751,7 @@ void RenderTransactionsTab(App* app)
                     float cy = rowPos.y + Layout::spacingMd();
 
                     // Icon
-                    DrawTxIcon(dl, shieldedDisplay ? "send" : tx.display_type,
+                    DrawTxIcon(dl, shieldedDisplay ? "shield" : tx.display_type,
                                cx + rowIconSz, cy + body2->LegacySize * 0.5f, rowIconSz, iconCol);
 
                     // Type label
@@ -769,7 +770,7 @@ void RenderTransactionsTab(App* app)
                                 OnSurfaceMedium(), addr_display.c_str());
 
                     // Amount (right-aligned, first line)
-                    ImU32 amtCol = (tx.amount >= 0) ? greenCol : redCol;
+                    ImU32 amtCol = shieldedDisplay ? shieldCol : ((tx.amount >= 0) ? greenCol : redCol);
                     if (tx.amount >= 0)
                         snprintf(buf, sizeof(buf), "+%.8f", tx.amount);
                     else

src/util/i18n.cpp

@@ -1207,6 +1207,7 @@ void I18n::loadBuiltinEnglish()
         strings_["tx_chat_badge"] = "Message";
         strings_["recv_type"] = "Recv";
         strings_["sent_type"] = "Sent";
+        strings_["shielded_self_type"] = "Shielded";
         strings_["immature_type"] = "Immature";
         strings_["mined_type"] = "Mined";
         strings_["mature"] = "Mature";