feat(wallets): show "HD wallet" instead of "?" when the seed flag is unreadable

When a row is probed as an HD wallet (has hdseed/hdchain records) but the
mnemonic flag can't be read — e.g. the rare tier-1 byte-scan fallback on an
unusual BDB variant or a >256 MB file — it now shows a neutral "HD wallet"
badge (ICON_MD_ACCOUNT_TREE) rather than a bare "?", which read as alarming.
"Unknown" (?) is reserved for a scan that couldn't even establish it's HD
(incomplete, no HD marker seen). Both still yield to the Lock badge when
encrypted. Seed/legacy/hd/unknown remain mutually exclusive.

Adds wallets_badge_hd / _hd_short strings (EN source + all 8 languages,
additive) and rebuilds the CJK subset font for the new glyphs.

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

res/lang/ko.json

@@ -1474,6 +1474,8 @@
     "wallets_add_folder_toggle": "+ 다른 폴더에서 지갑 검색…",
     "wallets_badge_encrypted": "암호화됨 (암호로 보호됨)",
     "wallets_badge_encrypted_short": "암호화됨",
+    "wallets_badge_hd": "HD 지갑 — 열지 않으면 시드 문구를 확인할 수 없습니다",
+    "wallets_badge_hd_short": "HD 지갑",
     "wallets_badge_legacy": "레거시 지갑 (시드 문구 없음)",
     "wallets_badge_legacy_short": "레거시",
     "wallets_badge_seed": "시드 문구 지갑 (HD)",