feat(i18n,mining): translate warmup block/tx-type labels; fix the disconnected-solo mine tooltip

- Warmup/daemon status no longer appends a hardcoded English " (Block N)" — it
  uses a translated warmup_block_fmt key.
- Recent-transaction type labels (Sent/Received/Mined) are now translated in the
  UI consumer (recentTypeLabel in balance_recent_tx.cpp) with a generic
  "Transaction" fallback, instead of the data layer's raw English getTypeDisplay().
- Mining: a disconnected solo miner hovering the dead Mine button now gets a
  "not connected to the node" tooltip instead of a misleading "Start Mining"
  (the tooltip chain had no branch for the solo !isConnected() disable).

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

src/ui/windows/balance_recent_tx.cpp

@@ -1,6 +1,7 @@
 #include "balance_recent_tx.h"
 #include "../../config/version.h"
 #include "../../util/text_format.h"
+#include "../../util/i18n.h"
 
 #include <cmath>
 #include <cstdio>
@@ -23,12 +24,22 @@ std::string recentTimeAgo(int64_t timestamp)
 {
     return util::formatTimeAgoShort(timestamp);
 }
+
+// Translated type label (the data layer's getTypeDisplay() returns raw English). Never leak a raw RPC
+// category: anything unrecognized (including "shield") falls back to a generic "Transaction".
+std::string recentTypeLabel(const std::string& type)
+{
+    if (type == "send")    return TR("sent_type");
+    if (type == "receive") return TR("received_label");
+    if (type == "mined" || type == "generate" || type == "immature") return TR("mined_type");
+    return TR("tx_type_generic");
+}
 }
 
 RecentTxDisplay buildRecentTxDisplay(const TransactionInfo& tx, int addressMaxLen)
 {
     return {
-        tx.getTypeDisplay(),
+        recentTypeLabel(tx.type),
         util::truncateMiddle(tx.address, addressMaxLen),
         formatRecentAmount(tx.type, tx.amount),
         recentTimeAgo(tx.timestamp)