IME and EI delay need observable state before vector dispatch

The generated SM83 runtime now keeps an explicit interrupt-master-enable latch and one-instruction EI delay. DI clears both immediately, and the instruction boundary records pending sources from IE & IF & $1F; internal evidence expose the resulting IME, delay, and pending-source states for every sampled frame.

Raw traces, ROM material, local paths, and personal data are not part of this public record.