chore(i18n,spec): regenerate metadata-forms translations, add changeset

en.metadata-forms.generated.ts picks up the new condition helpText
(node scripts/check-i18n-bundles.mjs --write). The other 8 packages'
bundles regenerated byte-identical; zh-CN/ja-JP/es-ES kept their
existing translated-locale values under merge mode (now stale relative
to the new English source, per the tool's documented behaviour).

---
_Generated by [Claude Code](https://claude.ai/code)_

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

Author: claude

.changeset/20439-hook-condition-expression-row.md

@@ -0,0 +1,11 @@
+---
+'@objectstack/spec': patch
+---
+
+`hook.form.ts`'s `condition` row now declares `language: 'expression'`, matching the CEL predicate `HookSchema.condition` actually is.
+
+Clause-②: no
+
+The row previously declared `language: 'javascript'` — the same declared language as a real script row (`body.source`) — over a field that is `EvaluatedExpressionInputSchema`, a CEL predicate. A consumer keyed on the row's declared language could not tell the predicate apart from a script. The `helpText` moves from "Optional formula — skip the hook when this evaluates to false" to "CEL predicate — the hook runs only when TRUE", matching the phrasing every sibling predicate row (`field.form.ts` / `object.form.ts`'s `visibleWhen` / `readonlyWhen` / `requiredWhen`, and the formula `expression` row) already uses.
+
+No key is added, removed, narrowed or widened, and no parse verdict changes — `type: 'code'` and `language` are already-declared form-DSL vocabulary. `metadata-form-declared-rows.pin.test.ts` pins the new value, with a control against a sibling predicate row.

packages/platform-objects/src/apps/translations/en.metadata-forms.generated.ts

@@ -767,7 +767,7 @@ export const enMetadataForms: NonNullable<TranslationData['metadataForms']> = {
       },
       condition: {
         label: "Condition",
-        helpText: "Optional formula — skip the hook when this evaluates to false"
+        helpText: "CEL predicate — the hook runs only when TRUE"
       },
       retryPolicy: {
         label: "Retry Policy",