Journal contents refute the mid-scanline-gap hypothesis; the game itself writes the center bar solid

Two results. (1) Journal plumbing correction: a scanline can be snapshotted more than once (WSYNC path AND the Finding-86 cycle-driven beam path); the capture handoff used assignment, so the later empty-stage call zeroed ev_n on every line while the capture counters grew — every snapshot read as event-free.

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