[improvement] TraceTx/TraceBlock can't capture post-tx processing EVM calls

## Description

`TraceTx` and `TraceBlock` queries do not capture EVM calls that occur during post-transaction processing hooks. This creates a discrepancy between traced execution and actual transaction execution.

## Problem

When `PostTxProcessing` hooks make EVM calls (e.g., calling precompiles or contracts), these calls are not captured by `TraceTx` and `TraceBlock` queries, resulting in incomplete traces.

### Key Issues

1. **`TraceTx`/`TraceBlock` do not execute `PostTxProcessing` hooks**
- See: [`grpc_query.go:583`](https://github.com/cosmos/evm/blob/main/x/vm/keeper/grpc_query.go#L583), [`grpc_query.go:848`](https://github.com/cosmos/evm/blob/main/x/vm/keeper/grpc_query.go#L848)

2. **`EvmHooks` interface has no tracer parameter**
- See: [`types/interfaces.go:79-82`](https://github.com/cosmos/evm/blob/main/x/vm/types/interfaces.go#L79-L82)

```go
type EvmHooks interface {
PostTxProcessing(ctx sdk.Context, sender common.Address,
msg core.Message, receipt *ethtypes.Receipt) error
// No tracer parameter ↑
}
```

3. **Tracer scope is limited to `ApplyMessageWithConfig`**
- The tracer does not extend to `PostTxProcessing` execution

## Related Code

- [`x/vm/keeper/grpc_query.go:497-668`](https://github.com/cosmos/evm/blob/main/x/vm/keeper/grpc_query.go#L497-L668) - `TraceTx`/`TraceBlock` implementations
- [`x/vm/keeper/state_transition.go:268-307`](https://github.com/cosmos/evm/blob/main/x/vm/keeper/state_transition.go#L268-L307) - `PostTxProcessing` call site
- [`x/vm/types/interfaces.go:79-82`](https://github.com/cosmos/evm/blob/main/x/vm/types/interfaces.go#L79-L82) - `EvmHooks` interface definition

Start in x/vm/keeper/grpc_query.go at the TraceTx and TraceBlock entry points, then read x/vm/keeper/state_transition.go and x/vm/types/interfaces.go around the cited lines. Trace how PostTxProcessing is invoked and how the tracer is scoped. Done means post-transaction EVM calls appear in TraceTx and TraceBlock results without breaking existing tracing behavior.

Written by the indexing model from the issue text.