feat(sdk-coin-apt): making abi mandatory for custom transactions

[shivam-bitgo]

Ticket: COIN-5586

This pull request enforces stricter type safety for custom Aptos transactions by requiring the ABI (Application Binary Interface) to be explicitly provided and validated for every custom entry function call. It updates the interface, transaction logic, and tests to ensure that all custom transactions include a correct ABI, and adds validation logic to catch and reject invalid ABIs early in the transaction building process.

Custom transaction ABI enforcement and validation:

• The abi field in CustomTransactionParams is now required (was optional) and must match the exact function signature of the target entry function, improving type safety and error reporting (modules/sdk-coin-apt/src/lib/iface.ts, modules/sdk-coin-apt/src/lib/transaction/customTransaction.ts).
• Added a new validateAbi method to CustomTransaction to ensure the ABI structure is correct and provide clear error messages if it is not, causing transaction building to fail early when an invalid ABI is provided (modules/sdk-coin-apt/src/lib/transaction/customTransaction.ts).

Test suite updates for ABI requirement:

• All unit tests for custom transaction building now explicitly provide the required ABI, including various valid and invalid cases, and new ABIs for custom token mint/burn functions. Tests now expect transaction building to fail if the ABI is missing or invalid (modules/sdk-coin-apt/test/unit/transactionBuilder/customTransactionBuilder.ts).

Behavioral changes and error handling:

• Transaction builder will now throw errors for missing or malformed ABI, and tests verify that invalid ABIs are rejected, improving reliability and developer feedback (modules/sdk-coin-apt/test/unit/transactionBuilder/customTransactionBuilder.ts).

These changes ensure that all custom Aptos transactions are built with strict type validation, reducing runtime errors and improving developer experience.

[baltiyal]

looks good to me

[kamleshmugdiya]

ci is failing.
try to rebase.
axios vulnerability was fixed here #6971

[shivam-bitgo]

rebased with master for failing vulnerability CI check