docs: update away/afk RE with mining command transitions and dead code

- Mining command cycles through 7 (animation loop), 10 (active cycle),

11 (init) — not just 11 as initially documented

- AutoAFK_Timer condition 5 (sub_754BA5/IsWalking) is dead code:

ForbidFollow trashes ECX before the call, so it reads garbage

- Document the two-hook fix: call-site redirect at 0x77038C (primary)

and SetAwayAnimation prolog hook (safety net)

- Add sub_8E826F (command 10 handler) and sub_754BA5 annotations