Update TON address format to support mainnet/testnet

[sssning121]

Expected Behavior

Addresses on the TON chain should be correctly formatted based on the network environment (mainnet or testnet). This includes converting raw addresses into user-friendly formats with proper flags.

Specifications

As a user, I would like my TON addresses to be displayed in the correct format for mainnet or testnet environments, so that I can clearly identify and use them appropriately in my wallet or transactions.

Features:

1. Support converting raw TON addresses to friendly format
2. Format adjusts based on isTestOnly flag
3. Ensure bounceable / non-bounceable flag compatibility

Development Tasks:

• Add isTestOnly flag usage to address conversion utility