Wallet consumers (e.g. the Qt module and apps built on it) currently have to
reconstruct LEZ's wallet path layout themselves to call create/open, which
duplicates the logic in `wallet::helperfunctions` and silently drifts if the
default home or filenames change.
Add functions that resolve everything from LEZ's canonical home
(`LEE_WALLET_HOME_DIR` or `~/.lee/wallet`):
- `wallet_ffi_create_new_default(password)` — create at the default home
(resolves paths, creates the directory), path-free `wallet_ffi_create_new`.
- `wallet_ffi_open_default()` — open the default wallet via `WalletCore::from_env`.
- `wallet_ffi_default_config_path()` / `wallet_ffi_default_storage_path()` —
return the resolved paths (caller frees with `wallet_ffi_free_string`).
- `wallet_ffi_wallet_exists_default()` — whether a wallet already exists at the
default home, for choosing between an open and a create flow.
Together these let consumers drop their own path handling entirely. The C
header (`wallet_ffi.h`) is regenerated by the cbindgen build step.
* initialize pq encryption changes
* key agreement update
* add test and other fixes
* ci fixes
* fix unit tests
* updates from main and ci
* added updated specs for pq encryption
* addressing comments
* addressed comments
* fix clippy errors from main merge
* Rebased to main
BREAKING CHANGE: LEZ crates have been moved from top-level directories into
a dedicated `lez/` subdirectory. The following crates were relocated:
common → lez/common
indexer → lez/indexer
explorer_service→ lez/explorer_service
keycard_wallet → lez/keycard_wallet
mempool → lez/mempool
sequencer → lez/sequencer
storage → lez/storage
testnet_initial_state → lez/testnet_initial_state
wallet → lez/wallet
wallet-ffi → lez/wallet-ffi
Any external tooling, scripts, or paths referencing these crates at their
previous top-level locations must be updated.
