A file block never reaches a model as bytes: dsh projects every one to
`fileHandleText` at request assembly, and the token meter prices that handle in
place of the block's structural JSON price. An attachment therefore costs a
fixed ~60 tokens whatever its size, so the card now shows that price beside the
size — computed from the three facts a log carries (name, byte size, digest
prefix) and priced with the meter's own text arm, now shared with the fold's
message price instead of restated there.
The handle also names the stored copy's read path, which only the live
environment resolves and no log holds, so the row prices the pathless arm and
reads as a lower bound (`≥`) rather than an `≈`. The fold keeps the meter's
fixed structural price for the same block, exactly as the harness does: one
figure answers the request, the other the surface.
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