refact(comments): state the mechanism, not the incident

Every comment that invoked a 'law' (50 word-boundary sites across 28
tracked files) now states what is going on and why, in terms that
transfer to any project: gate twins drift until one side greenlights
what the other refuses; a tag re-points while a digest pins; a
restrictive engine behavior belongs to the runtime that imposed it and
must be re-tested, not inherited; a speculative head is tensors in the
file, not a flag; snapshot links dangle where the container resolves
them; exit 0 is a clean stop to systemd, so a self-exiting daemon on
on-failure goes dark reporting success. Event narratives and dates are
gone from these comments; the mechanics carry the argument.

Behavior-identical: bash -n, py_compile, yaml parse, full bats suite
408/408 green. One symbol rename rides along (stack script local
scale_law -> scale_contract, with its log text).

scripts/patches/glm53-dflash-01-aux-hidden-states.patch

@@ -29,10 +29,11 @@
 #     its base SupportsEagleBase (has_own_lm_head, has_own_embed_tokens) -- and
 #     getattr_static()s each one off the instance, breaking on the first miss.
 #     So BOTH wrappers need all three attributes.
-#   * MRO law: INHERITING SupportsEagle3 as a base dies at class creation with
-#     "Cannot create a consistent method resolution order (MRO) for bases ..."
-#     (GLM's wrappers already carry four/five Protocol-derived bases).  The
-#     attribute route avoids the MRO entirely.  Also proven by simulation:
+#   * Why not inheritance: adding SupportsEagle3 as a BASE class dies at
+#     class creation with "Cannot create a consistent method resolution
+#     order (MRO) for bases ..." (GLM's wrappers already carry four/five
+#     Protocol-derived bases; the base ordering cannot take another). The
+#     attribute route avoids the MRO entirely; simulation confirms that
 #     the four-base ForCausalLM ordering cannot take SupportsEagle3 in ANY
 #     position.
 #   * Method placement: without inheriting, the Protocol's default