feat(svm): L-02 Missing SpeedUpV3Deposit and FillV3RelayWithUpdatedDe… (

#848)

* feat(svm): L-02 Missing SpeedUpV3Deposit and FillV3RelayWithUpdatedDeposit Functionalities in SVM Spoke Pool

Signed-off-by: Pablo Maldonado <pablomaldonadoturci@gmail.com>

* WIP

Signed-off-by: Chris Maree <christopher.maree@gmail.com>

* Update programs/svm-spoke/src/instructions/deposit.rs

---------

Signed-off-by: Pablo Maldonado <pablomaldonadoturci@gmail.com>
Signed-off-by: Chris Maree <christopher.maree@gmail.com>
Co-authored-by: Chris Maree <christopher.maree@gmail.com>

programs/svm-spoke/src/instructions/deposit.rs

@@ -1,3 +1,8 @@
+// Note: The `svm-spoke` does not support `speedUpV3Deposit` and `fillV3RelayWithUpdatedDeposit` due to cryptographic
+// incompatibilities between Solana (Ed25519) and Ethereum (ECDSA secp256k1). Specifically, Solana wallets cannot
+// generate ECDSA signatures required for Ethereum verification. As a result, speed-up functionality on Solana is not
+// implemented. For more details, refer to the documentation: https://docs.across.to
+
 use anchor_lang::prelude::*;
 use anchor_spl::token_interface::{Mint, TokenAccount, TokenInterface};