vesting dao mint

[andrewnguyen22]

Summary

This PR adds vesting-aware account support and a mint option for DAO transfer proposals.

What Changed

Vesting accounts

• Added vesting metadata to accounts:
  • vestingAmount
  • vestingStartHeight
  • vestingCliffHeight
  • vestingEndHeight
• Added vesting-aware send support so a transfer can create or extend a recipient vesting schedule.
• Enforced spendable-balance checks in the FSM so locked vesting funds cannot be spent.
• Updated RPC/account JSON handling so vesting fields are preserved in responses and serialization.
• Fixed faucet top-up behavior to use spendable balance rather than raw total balance.

DAO transfer minting

• Added mint: bool to MessageDAOTransfer.
• When mint=true, the FSM mints amount into the DAO pool immediately before executing the DAO transfer.
• This allows validator-approved one-off treasury mint events for grants.

Why

Vesting

The chain needs to distinguish between:

• total account balance
• vesting-restricted balance
• currently spendable balance

This PR keeps total ownership at the storage layer while enforcing spendability dynamically based on vesting schedule and height.

DAO minting

This gives validators a controlled way to approve exceptional treasury grant events that require new issuance, without creating a separate
governance message type.

Testing

Covered with focused tests for:

• vesting spendable accounting
• vesting JSON round-trip preservation
• RPC account responses with spendable amount and vesting metadata
• DAO transfer behavior
• DAO mint-then-transfer behavior

[rem1niscence]

is it ready? @andrewnguyen22 as some tests are failing on the CI

[andrewnguyen22]

Review re-requested @rem1niscence @pablocampogo @ezeike

[rem1niscence]

everything looks all right in general, just set it as request changes to enforce the response of the comments. Also in general, I'm pretty sure you did but just to double confirm, as there's a possibly high amount of places where account balances are manipulated in general, did you make sure that all these places have the checks for vesting in place? wether to view those accounts or manipulate them in any way