feat(wasm-utxo): add psbt wallet input validation

Add validation for PSBT inputs to ensure they belong to the specified
wallet. Includes:
- Verification of key derivations against wallet keys
- Replay protection support
- Detailed error reporting for validation failures
- Comprehensive test helpers

Issue: BTC-2652

Co-authored-by: llm-git <llm-git@ttll.de>

Author: OttoAllmendinger

packages/wasm-utxo/src/fixed_script_wallet/mod.rs

@@ -1,7 +1,7 @@
 /// This module contains code for the BitGo Fixed Script Wallets.
 /// These are not based on descriptors.
+pub mod psbt_wallet_input;
 mod wallet_keys;
-
 pub mod wallet_scripts;
 
 #[cfg(test)]