Fold watch-only into Import; support xprv spending import

Home screen is back to two tabs (Create / Import). The Import box now
takes a recovery phrase, an xpub/zpub, or an xprv/zprv:
- mnemonic → full wallet (as before)
- xpub/zpub → watch-only (view/receive, no Send)
- xprv/zprv → full spending wallet with no mnemonic. parseExtendedKey
  classifies + normalizes version bytes; account() derives the BIP84
  path from a master xprv (depth 0) or uses an account-level xprv as-is;
  signing works (only watch-only blocks it). Vault persists xprv accounts
  too; Settings shows an "Imported key" note instead of a recovery card
  and hides Nostr sync (no seed). Public-key export still works.

Note: a seed phrase cannot be derived from an xprv (one-way KDF), so an
xprv wallet has no recovery words by design. New strings in all 19 locales.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/locales/id.json b/src/locales/id.json
index d5d9bbc..7690eae 100644
--- a/src/locales/id.json
+++ b/src/locales/id.json
@@ -205,5 +205,10 @@
   "unlockSavedDesc": "Masukkan kata sandi Anda untuk membuka dompet yang tersimpan di perangkat ini.",
   "unlock": "Buka",
   "useAnotherWallet": "Gunakan dompet lain",
-  "save": "Simpan"
+  "save": "Simpan",
+  "importLabel": "Frasa pemulihan atau kunci",
+  "importPlaceholder": "12 atau 24 kata Anda, atau xpub / xprv",
+  "invalidImport": "Itu bukan frasa pemulihan, xpub, atau xprv yang valid.",
+  "importedKey": "Kunci yang diimpor",
+  "importedKeyNote": "Dompet ini diimpor dari kunci privat yang diperluas, jadi tidak ada frasa pemulihan. Cadangkan kunci itu sendiri untuk menyimpan dompet."
 }
\ No newline at end of file