The pointers back from what yesterday's records changed, which I missed twice

Three records were left describing a mechanism a new record had moved,
and a reader arrives at them by following a citation: 0066 still said a
routed name is written into every container after 0148 replaced that with
resolution; 0016 still read as though the lab were the test bed after
0149; and issues 109 and 135 said nothing about 0148 ending the copying
that 135's own fix made comparable. Each was a citation leading to the
wrong answer in a record that was not wrong about anything it decided.

This is the second time in one session. The playbook rule I added last
round did not stop it, so the convention is now written where the record
conventions live, with the shape to use and three worked examples — and
with the honest note that it is NOT machine-checked and cannot be from
`extends:` alone: 102 records extend another, 87 have no back-reference,
and that is correct, because extending usually means building on a
context. Making it mechanical means a record declaring the relationship
in frontmatter, which is a schema change and is not mine to decide.

Also: designs 18 and 20 claimed `updated:` dates from before I edited
them, and 117's `fixed-by` gained the commit beside the record.

03-DESIGN/01-to-be/18-building-a-module.md

@@ -5,7 +5,7 @@ code:
   - mesh-controller cmd/mesh-builder
   - mesh-controller internal/builder
   - mesh-catalog modules/builder
-updated: 2026-09-29
+updated: 2026-09-30
 decisions:
   - 02-DECISIONS/0150-a-modules-own-code-runs-as-supervised-processes-under-one-account.md
   - 02-DECISIONS/0142-the-mesh-delivers-its-own-components-as-binaries.md

03-DESIGN/01-to-be/20-writing-a-module.md

@@ -5,7 +5,7 @@ code:
   - mesh-catalog modules/showcase
   - mesh-controller internal/builder
   - mesh-sdk src
-updated: 2026-09-21
+updated: 2026-09-30
 decisions:
   - 02-DECISIONS/0150-a-modules-own-code-runs-as-supervised-processes-under-one-account.md
   - 02-DECISIONS/0099-a-step-that-runs-once-names-what-it-reads.md