fix(console): localize the lite console + drop full-node-only wording

The lite console tab lagged the full-node one on i18n: its toolbar status,
status lines, help, and error/warning strings were hard-coded English or
worded for a full node (a "daemon" the lite wallet doesn't have).

- toolbarStatus()/statusLines(): route through TR() (reusing the existing
  lite_net_* keys where they already map)
- printHelp(): enumerate the 25 pass-through backend verbs for discoverability,
  since the C++ tab intercepts `help` before the backend's own HelpCommand runs
- gate the destructive 'stop' confirmation to the full node (hasRpcReference);
  lite has no node, so it lets 'stop' fall through to the backend instead of
  showing a phantom "shut down the node" warning behind a dead gate
- word the not-connected error per variant (daemon vs "no wallet open")
- TR() the "(no output)" command-result fallback

Adds 7 i18n keys across all 8 languages (additive); rebuilds the CJK subset
for the one new glyph (U+C5D4 for the Korean "backend"). Build + ctest +
source-hygiene green; changes adversarially verified (no logic/i18n defects).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/util/i18n.cpp

@@ -1395,6 +1395,12 @@ void I18n::loadBuiltinEnglish()
         strings_["console_available_commands"] = "Available commands:";
         strings_["console_quit_note"] = "'quit'/'exit' aren't needed here — just close the window.";
         strings_["lite_console_help_passthrough"] = "Any other input runs as a lite-wallet console command.";
+        strings_["lite_console_backend_commands"] = "Backend commands:";
+        strings_["console_no_output"] = "(no output)";
+        strings_["console_backend_unavailable"] = "No backend";
+        strings_["console_last_error"] = "Last error:";
+        strings_["console_not_connected_lite"] = "Error: no wallet open";
+        strings_["console_stop_confirm_node"] = "'stop' will shut down the node and disconnect the wallet. Type 'stop' again to confirm.";
         strings_["console_capturing_output"] = "Capturing daemon output...";
         strings_["console_clear"] = "Clear";
         strings_["console_clear_console"] = "Clear Console";
@@ -1854,6 +1860,7 @@ void I18n::loadBuiltinEnglish()
         strings_["lite_net_show_hidden"]  = "Show hidden servers";
         strings_["lite_net_hidden_section"] = "Hidden servers";
         strings_["lite_net_connected"]    = "Connected";
+        strings_["lite_net_connecting"]   = "Connecting";
         strings_["lite_net_disconnected"] = "Not connected";
         strings_["lite_net_syncing"]      = "Syncing";
         strings_["lite_net_synced"]       = "Synced";