docs(spec): delete the scalar reason's class-wide stored-view sentence (#19514)

The seat's Q1 ruling (B) on round 5: the scalar entry covers all 13
scalar operators, so "None reads the array as the SCALAR the operator
declares, so the earlier reading ... on MongoDB it selects by a
predicate the rule never wrote." reads class-wide, where it is false
(driver-memory answers contains ['a'] with rows). The whole sentence is
deleted from the entry's reason; nothing else in the reason moves.
registry.ts regenerated by gen:migration-registry.

Claude-Session: https://claude.ai/code/session_01Sfe5YjBLwB9J3y8fvm2xq1
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

packages/spec/src/migrations/entries/semantic/18.view-filter-rule-scalar-operator-array-refused.ts

@@ -58,11 +58,7 @@ export const entry: SemanticMigration = {
     + 'lowered node beside a scalar and an $in control, and this change\'s review also ran '
     + 'driver-sql on a live PostgreSQL 16 (refused before any SQL statement was emitted), '
     + 'driver-sqlite-wasm, and turso\'s remote transport over the repository\'s libsql stub; '
-    + 'MySQL and a live Turso server were NOT measured. None reads the array as '
-    + 'the SCALAR the operator declares, so the earlier reading was the one that widened the '
-    + 'accept set past the query path: at this release a stored view carrying the shape gets '
-    + 'a 400 from the SQL family and driver-memory, and '
-    + 'on MongoDB it selects by a predicate the rule never wrote. '
+    + 'MySQL and a live Turso server were NOT measured. '
     + 'Metadata AT REST is deliberately NOT rewritten and this entry adds no D2 conversion: a '
     + 'SemanticMigration converts nothing by its own type, and the stored-row pass replays D2 '
     + 'conversions only. Coercing at load would be the platform guessing intent — an array of '

packages/spec/src/migrations/registry.ts

@@ -13120,11 +13120,7 @@ const step18: MigrationStep = {
         + 'lowered node beside a scalar and an $in control, and this change\'s review also ran '
         + 'driver-sql on a live PostgreSQL 16 (refused before any SQL statement was emitted), '
         + 'driver-sqlite-wasm, and turso\'s remote transport over the repository\'s libsql stub; '
-        + 'MySQL and a live Turso server were NOT measured. None reads the array as '
-        + 'the SCALAR the operator declares, so the earlier reading was the one that widened the '
-        + 'accept set past the query path: at this release a stored view carrying the shape gets '
-        + 'a 400 from the SQL family and driver-memory, and '
-        + 'on MongoDB it selects by a predicate the rule never wrote. '
+        + 'MySQL and a live Turso server were NOT measured. '
         + 'Metadata AT REST is deliberately NOT rewritten and this entry adds no D2 conversion: a '
         + 'SemanticMigration converts nothing by its own type, and the stored-row pass replays D2 '
         + 'conversions only. Coercing at load would be the platform guessing intent — an array of '