Translate every Italian /// XML doc comment, <!-- --> XAML comment, and
// inline comment to English across all source files (Core, App, tests).
Add the language policy to CLAUDE.md (conversation Italian; all code
and docs English). Update one test assertion that checked an Italian
exception message that was also translated.
Three improvements to WalletLock integration:
1. OpenExisting acquires the lock before decrypting the file — no point
attempting a potentially expensive PBKDF2 derivation for a wallet
already held by another instance.
2. OpenFromPath acquires the lock before CloseWallet — if the new wallet
is unavailable, the current session stays intact instead of being
silently destroyed.
3. OpenLoaded now receives an already-acquired WalletLock from the caller
instead of acquiring it internally; TryAcquireWalletLock is removed.
Callers that fail to open (wrong password, I/O error) dispose the lock
in their catch blocks.
Also fix CoinAmount.Of() to throw ArgumentException for unknown units
instead of silently falling back to PLM.
Replace the silent (long) cast with an explicit fractional check:
if value * factor has a non-zero remainder, TryParseIn/TryParseCoins
return false. The caller already shows "Importo non valido." to the
user, so no UI change is needed.
Covers TryParseIn (all units) and TryParseCoins. Adds CoinAmountTests
with valid and invalid cases including the triggering example (1.9 sat).
Add global AppConfig (config.json, blueprint §8) persisting language
and amount unit. CoinAmount gains unit-aware formatting and parsing
(PLM, mPLM, µPLM, sat), applied everywhere amounts are shown or
entered, including the send form. New Loc i18n layer (it/en) with
live-updating XAML bindings covering menu, wizard, wallet panel and
status messages.
The Impostazioni menu opens a dropdown with separate Lingua and Unità
entries (radio-checked submenus, applied and saved on click), ready to
host future settings.
davide