Byte-aligning the WA55A7700AV's 16-byte payload against the WW5000C's
20-byte one: identical header, and the first four tag/value pairs are the
same tags in the same order at the same offsets -- the part that carries
per-program data has one shape on both boards. The whole width difference
is two trailing pairs the WA55 doesn't carry, and on the WW5000C that
trailing section is byte-identical across all nine programs, so it isn't
program data at all.
Doesn't change the conclusion -- the four shared tags carry non-overlapping
value ranges between the boards, so the encoding is still board-specific and
blobs are still replayed whole. Also records why the WA55's /washer/vs/0
readings can't be used to confirm a decode: that unit is on a local course,
not its cloud course.