fix(spec): state the contract-first rule in words and drop a sweep batch ordinal in three migration entries

The two ui-list-view padded-name entries cited "AGENTS.md #0.1", a rule
number from the renderer repository's contributor guide that names
nothing in this repository's AGENTS.md. Their reason now states the rule
the ruling cited: fix the metadata, not the renderer; off-spec metadata
is refused where it is authored, never coerced into working.

The notification/embed retirement entry named "its ui/ batch 14" of the
v17 unknown-key strictness sweep. The sentence already says what that
batch measured and decided, so the ordinal is dropped and the later
back-reference reads "The sweep".

Text only: no id, surface, from/to, matcher or comment moves.

Claude-Session: https://claude.ai/code/session_014EJ1ED8X4MMrT18BhVx4tx
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/spec/src/migrations/entries/semantic/17.ui-notification-action-embed-config-retired.ts

@@ -15,7 +15,7 @@ export const entry: SemanticMigration = {
     + 'through a new ADR — carrier key and renderer first, vocabulary second)',
   reason:
     'Both shapes were published `@objectstack/spec/ui` vocabulary with NO AUTHORING DOOR. '
-    + 'The v17 unknown-key strictness sweep (its ui/ batch 14), which measured each ui/ '
+    + 'The v17 unknown-key strictness sweep, which measured each ui/ '
     + 'file for an authoring door before closing any shape, measured them three ways on '
     + '2026-08-03 and this retirement re-ran all '
     + 'three against `origin/main` before removing anything, each with a positive control '
@@ -36,7 +36,7 @@ export const entry: SemanticMigration = {
     + 'ADR-0033 trap where an AI author takes `EmbedConfigSchema` in the published bundle '
     + 'as proof the platform serves iframes. Neither is stored metadata and neither has a '
     + 'carrier, so no `sys_metadata` row can hold one and there is no source for the D2 '
-    + 'chain to rewrite; this entry is the D3 record. That batch deliberately did NOT close '
+    + 'chain to rewrite; this entry is the D3 record. The sweep deliberately did NOT close '
     + 'them with `.strict()` — strictness is a property of a PARSE, and closing a shape nothing '
     + 'parses buys only "a precisely-validated dead slot, the more convincing lie" (the lesson '
     + 'of the datasource capability flags, whose `readOnly` was precisely validated and read '

packages/spec/src/migrations/entries/semantic/18.ui-list-view-groupbyfield-padded-refused.ts

@@ -34,7 +34,9 @@ export const entry: SemanticMigration = {
     + 'the same consequence, but it only runs where an app is validated against its object '
     + 'definitions; the producer accepted the value regardless. ⛔ NOT a `.trim()`: a trimming '
     + 'schema makes `\' stage\'` and `\'stage\'` silently equivalent, the consumer-tolerance '
-    + 'direction AGENTS.md #0.1 refuses — and on the REQUIRED kanban key the author cannot '
+    + 'direction the contract-first rule refuses (fix the metadata, not the renderer: '
+    + 'off-spec metadata is refused where it is authored, never coerced into working) — and '
+    + 'on the REQUIRED kanban key the author cannot '
     + 'withdraw the value by omitting the key, so a normalising producer would be their only '
     + 'feedback channel and it would say nothing. The narrowing is non-padded ONLY and '
     + 'deliberately not the snake_case machine-name grammar `/^[a-z_][a-z0-9_]*$/` this package '

packages/spec/src/migrations/entries/semantic/18.ui-list-view-grouping-field-padded-refused.ts

@@ -26,7 +26,9 @@ export const entry: SemanticMigration = {
     + 'silent wrong answer that reads as a true statement about the data, which is why '
     + 'nothing weaker than a parse refusal is honest here. ⛔ NOT a `.trim()`: a trimming '
     + 'schema makes `\'  a  \'` and `\'a\'` silently equivalent, the consumer-tolerance '
-    + 'direction AGENTS.md #0.1 refuses. objectui\'s harvester trim stays as '
+    + 'direction the contract-first rule refuses (fix the metadata, not the renderer: '
+    + 'off-spec metadata is refused where it is authored, never coerced into working). '
+    + 'objectui\'s harvester trim stays as '
     + 'defence-in-depth; nothing is removed there. The narrowing is non-padded ONLY and '
     + 'deliberately not the snake_case machine-name grammar `/^[a-z_][a-z0-9_]*$/` this '
     + 'package spells inline for object/field/tool NAMES: a grouping level is authored as '