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/zh.json

@@ -1474,6 +1474,8 @@
     "wallets_add_folder_toggle": "+ 扫描其他文件夹中的钱包…",
     "wallets_badge_encrypted": "已加密（密码保护）",
     "wallets_badge_encrypted_short": "已加密",
+    "wallets_badge_hd": "HD 钱包 — 打开钱包才能确认助记词",
+    "wallets_badge_hd_short": "HD 钱包",
     "wallets_badge_legacy": "旧版钱包（无助记词）",
     "wallets_badge_legacy_short": "旧版",
     "wallets_badge_seed": "助记词钱包 (HD)",