Retrieve state machine arguments when calling State()

[sergiogbr]

Feature Request: Return stored arguments from state accessor

Problem

When restarting a state machine that was stopped due to an external error,
I need to retrieve the previously stored arguments to re-activate the current state.
Currently, there's no way to access these arguments through the state accessor,
forcing manual retrieval from REDIS.

Current Behavior

The stateAccessor only returns the state, not the arguments that were passed
when entering that state.

Expected Behavior

The state accessor should also return the stored arguments so that:

• State machines can be properly restored after failures
• Arguments don't need to be manually retrieved from external storage

Use Case

Restarting a state machine from a persisted state in REDIS with all original context.

Reference

Link to relevant code

[qmuntal]

Seems like a legit request. Would you like to send a PR adding something like this (with tests)

func (sm *StateMachine) StateWithArgs(ctx context.Context) (State, []any, error) {
	return sm.stateAccessor(ctx)
}

[sergiogbr]

There you go:

#102