feat(console): lite backend command-reference modal

Give the lite console the parity analog of the full-node RPC command
reference: the same searchable two-pane modal (browse/search, detail
pane, examples, Insert / Insert & run, destructive confirm), driven by
the lite backend's own command set instead of daemon RPC.

- ConsoleCommandExecutor::commandReference() returns the category table
  (full node = consoleCommandCategories(); lite = new
  liteConsoleCommandCategories() -- 25 backend verbs in 5 categories).
  The shared renderCommandsPopup reads the table from the executor.
- The Commands button now shows for both variants (gated on
  commandReference()!=nullptr); title/tooltip/arg-quoting branch on
  hasRpcReference() (clarified to mean "speaks JSON-RPC / full node").
- Lite args are bare tokens (the backend takes one unsplit arg string
  and does not strip quotes), so the param-builder's JSON string
  auto-quoting is disabled for lite -- Insert & run emits runnable bare
  commands. send uses the JSON-array form (its positional form is
  unreachable via the single-arg transport); new uses zs/R; import
  takes just the key (the backend hardcodes birthday=0).

Adds 7 i18n keys across all 8 languages (additive). Full-node behavior
is unchanged. Adversarially reviewed (data vs the backend registry,
plumbing/regression, i18n) with all findings fixed.

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

res/lang/ko.json

@@ -271,13 +271,18 @@
     "console_app": "앱",
     "console_auto_scroll": "자동 스크롤",
     "console_available_commands": "사용 가능한 명령어:",
+    "console_backend_reference": "백엔드 명령어 참조",
     "console_backend_unavailable": "백엔드 없음",
     "console_capturing_output": "데몬 출력 캡처 중...",
+    "console_cat_advanced": "고급",
     "console_cat_blockchain": "블록체인",
     "console_cat_control": "제어",
+    "console_cat_keys": "키 및 보안",
     "console_cat_mining": "채굴",
     "console_cat_network": "네트워크",
     "console_cat_raw_transactions": "원시 트랜잭션",
+    "console_cat_send": "보내기",
+    "console_cat_sync": "동기화",
     "console_cat_utility": "유틸리티",
     "console_cat_wallet": "지갑",
     "console_clear": "지우기",
@@ -334,12 +339,14 @@
     "console_ref_run_confirm": "%s 을(를) 지금 실행할까요? 영향이 큰 명령입니다.",
     "console_ref_search_hint": "이름 또는 용도로 검색…",
     "console_ref_select_hint": "명령을 선택하면 설명이 표시됩니다.",
+    "console_ref_value": "값",
     "console_rpc_reference": "RPC 명령어 참조",
     "console_rpc_trace": "RPC",
     "console_scanline": "콘솔 스캔라인",
     "console_search_commands": "명령어 검색...",
     "console_select_all": "모두 선택",
     "console_show_app_output": "[app] 지갑 로그 줄 표시",
+    "console_show_backend_ref": "백엔드 명령어 참조 표시",
     "console_show_daemon_output": "데몬 출력 표시",
     "console_show_errors_only": "오류만 표시",
     "console_show_rpc_ref": "RPC 명령어 참조 표시",