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/frank-dragoon.env

@@ -42,10 +42,10 @@
 #   form of the engine's default, so the seam test can pin the product.
 #   KV costs ~28 KiB/position (FLAGS.md) => 524,288 x 28 KiB = 14.0 GiB.
 #   HALOGEN_KV_SLOTS=2 restores the w4b-era shape on this box: the MTP
-#   drafter is NOT slot-locked on this engine (batching and speculation
-#   coexist — DFlash-era slots>1 law does NOT carry over; the card's own
-#   quickstart ships 2 slots WITH the head), so the second slot is
-#   concurrent capacity, not a speculation tax.
+ #   drafter is NOT slot-locked on this engine: some engines silently
+ #   disable drafting the moment a second slot is enabled, this one does not
+ #   (the card's own quickstart ships 2 slots WITH the head), so the second
+ #   slot is concurrent capacity, not a speculation tax.
 #   Memory ledger against the box's 121.2 GiB unified (the n-gram table is
 #   mmap'd page cache beside the checkpoint, not a pinned charge — the
 #   card's own quickstart arithmetic does not bill it):
@@ -88,8 +88,9 @@
 #     before. Kernel needs CONFIG_HSA_AMD_SVM (CachyOS ships it) and
 #     amdgpu.noretry=0 (check at deploy).
 
-# Image: digest-pinned (fetch law: tag pulls silently re-point; the digest
-# is what was qualified). 0.16.2 = the version the model card names as its
+ # Image: digest-pinned (a tag is a mutable pointer — the same tag can
+ # silently deliver different bits — so the digest pins exactly the bits
+ # that were qualified). 0.16.2 = the version the model card names as its
 # quickstart pin; RepoDigest captured at pull on 2026-10-06.
 FRANK_DRAGOON_IMAGE=ghcr.io/peonist-ai/halogen-flash-server@sha256:0c61bf84ac22308a53f5d1ca6b86806702d7039e5ebc51cae4c66621b92fe04a
 # Container identity: kept from the 27B era (unit ExecStop names it).