feat(key-wallet-ffi): change wallet_build_and_sign_transaction signature to be used in iOS

key-wallet-ffi/FFI_API.md

@@ -1284,14 +1284,14 @@ This function dereferences a raw pointer to FFIWallet. The caller must ensure th
 #### `wallet_build_and_sign_transaction`
 
 ```c
-wallet_build_and_sign_transaction(managed_wallet: *mut FFIManagedWalletInfo, wallet: *const FFIWallet, account_index: c_uint, outputs: *const FFITxOutput, outputs_count: usize, fee_per_kb: u64, current_height: u32, tx_bytes_out: *mut *mut u8, tx_len_out: *mut usize, error: *mut FFIError,) -> bool
+wallet_build_and_sign_transaction(manager: *const FFIWalletManager, wallet: *const FFIWallet, account_index: u32, outputs: *const FFITxOutput, outputs_count: usize, fee_per_kb: u64, fee_out: *mut u64, tx_bytes_out: *mut *mut u8, tx_len_out: *mut usize, error: *mut FFIError,) -> bool
 ```
 
 **Description:**
-Build and sign a transaction using the wallet's managed info  This is the recommended way to build transactions. It handles: - UTXO selection using coin selection algorithms - Fee calculation - Change address generation - Transaction signing  # Safety  - `managed_wallet` must be a valid pointer to an FFIManagedWalletInfo - `wallet` must be a valid pointer to an FFIWallet - `outputs` must be a valid pointer to an array of FFITxOutput with at least `outputs_count` elements - `tx_bytes_out` must be a valid pointer to store the transaction bytes pointer - `tx_len_out` must be a valid pointer to store the transaction length - `error` must be a valid pointer to an FFIError - The returned transaction bytes must be freed with `transaction_bytes_free`
+Build and sign a transaction using the wallet's managed info  This is the recommended way to build transactions. It handles: - UTXO selection using coin selection algorithms - Fee calculation - Change address generation - Transaction signing  # Safety  - `manager` must be a valid pointer to an FFIWalletManager - `wallet` must be a valid pointer to an FFIWallet - `account_index` must be a valid BIP44 account index present in the wallet - `outputs` must be a valid pointer to an array of FFITxOutput with at least `outputs_count` elements - `fee_rate` must be a valid variant of FFIFeeRate - `fee_out` must be a valid, non-null pointer to a `u64`; on success it receives the calculated transaction fee in duffs - `tx_bytes_out` must be a valid pointer to store the transaction bytes pointer - `tx_len_out` must be a valid pointer to store the transaction length - `error` must be a valid pointer to an FFIError - The returned transaction bytes must be freed with `transaction_bytes_free`
 
 **Safety:**
-- `managed_wallet` must be a valid pointer to an FFIManagedWalletInfo - `wallet` must be a valid pointer to an FFIWallet - `outputs` must be a valid pointer to an array of FFITxOutput with at least `outputs_count` elements - `tx_bytes_out` must be a valid pointer to store the transaction bytes pointer - `tx_len_out` must be a valid pointer to store the transaction length - `error` must be a valid pointer to an FFIError - The returned transaction bytes must be freed with `transaction_bytes_free`
+- `manager` must be a valid pointer to an FFIWalletManager - `wallet` must be a valid pointer to an FFIWallet - `account_index` must be a valid BIP44 account index present in the wallet - `outputs` must be a valid pointer to an array of FFITxOutput with at least `outputs_count` elements - `fee_rate` must be a valid variant of FFIFeeRate - `fee_out` must be a valid, non-null pointer to a `u64`; on success it receives the calculated transaction fee in duffs - `tx_bytes_out` must be a valid pointer to store the transaction bytes pointer - `tx_len_out` must be a valid pointer to store the transaction length - `error` must be a valid pointer to an FFIError - The returned transaction bytes must be freed with `transaction_bytes_free`
 
 **Module:** `transaction`
 

key-wallet-ffi/include/key_wallet_ffi.h

@@ -3511,22 +3511,26 @@ bool mnemonic_to_seed(const char *mnemonic,
 
  # Safety
 
- - `managed_wallet` must be a valid pointer to an FFIManagedWalletInfo
+ - `manager` must be a valid pointer to an FFIWalletManager
  - `wallet` must be a valid pointer to an FFIWallet
+ - `account_index` must be a valid BIP44 account index present in the wallet
  - `outputs` must be a valid pointer to an array of FFITxOutput with at least `outputs_count` elements
+ - `fee_rate` must be a valid variant of FFIFeeRate
+ - `fee_out` must be a valid, non-null pointer to a `u64`; on success it receives the
+   calculated transaction fee in duffs
  - `tx_bytes_out` must be a valid pointer to store the transaction bytes pointer
  - `tx_len_out` must be a valid pointer to store the transaction length
  - `error` must be a valid pointer to an FFIError
  - The returned transaction bytes must be freed with `transaction_bytes_free`
  */
 
-bool wallet_build_and_sign_transaction(FFIManagedWalletInfo *managed_wallet,
+bool wallet_build_and_sign_transaction(const FFIWalletManager *manager,
                                        const FFIWallet *wallet,
-                                       unsigned int account_index,
+                                       uint32_t account_index,
                                        const FFITxOutput *outputs,
                                        size_t outputs_count,
                                        uint64_t fee_per_kb,
-                                       uint32_t current_height,
+                                       uint64_t *fee_out,
                                        uint8_t **tx_bytes_out,
                                        size_t *tx_len_out,
                                        FFIError *error)