comments: replace law idiom with the mechanism it encoded

Every comment that cited a named law, an incident date, or an
internal nickname now states the underlying mechanism and why it
matters, generically: curl exit-0 artifacts and byte-count gates,
argv-in-/proc secret exposure, tag mutability vs digest pinning,
shape-specialized kernels refusing uncompiled slot counts, MTP heads
as file tensors no flag can supply, drafter/slot coupling as an
engine property, pkill -f matching its invoker, pinned-RAM pairing
with LimitMEMLOCK, one-encoding-per-table, the short-run first-token
noise floor, and the protected-expert rule. No behavior change:
comment/string text only; suite green (371 tests).

scripts/convert-swift15-w4dn8.sh

@@ -27,7 +27,8 @@ CALIB=/home/dank/corpora/calib
 OUT=/home/dank/models/rad/qwen4exp-swift15-w4dn8-i8-hc8m.rad
 LOG=/home/dank/logs/swift15_convert.log
 # gate_up ~37.6 + down ~18.8 + PLE 47.7 + trunk/embeddings/head ~10 GiB (all-w4 expert table;
-# the plugin's one-encoding law dropped the block-fp8 down tier -- see the recipe header).
+ # the format assigns ONE encoding per expert table, so a per-tensor block-fp8
+ # down tier cannot be served beside a w4 gate_up tier -- see the recipe header).
 MIN_MIB=${FRANK_SWIFT15_RAD_MIN_MIB:-108000}
 
 # Gate 1: inputs. A missing Gram directory converts UNCALIBRATED with a