chore(changeset): patch @objectstack/platform-objects for the translated panel leaves

Measured rather than assumed: the package is not `private`, `files[]` ships
`dist`, and the new strings reach five published entry points there
(`index.js`/`index.mjs`, `plugin.js`/`plugin.mjs`,
`metadata-translations/index.*`) — the same five a pre-existing translated
leaf on the same panel reaches. So the diff publishes and `skip-changeset`
would be wrong.

Claude-Session: https://claude.ai/code/session_01NcPSwnmJHczmTu6FG7NMjE
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

.changeset/lucky-pugs-repeat.md

@@ -0,0 +1,7 @@
+---
+'@objectstack/platform-objects': patch
+---
+
+Translate the report and dataset form panel leaves that shipped their English source in every locale
+
+Four metadata-form keys — `report.fields.dataset`, `report.fields.values`, `report.fields.rows` and `dataset.fields.measures` — carried labels byte-identical to their `en` source in `zh-CN`, `ja-JP` and `es-ES`, so an author working in a translated locale read English on those two panels while everything around them was translated. Twelve label leaves and nine `helpText` leaves at the same four keys are now translated; each was judged individually, and the verdicts with their reasons are pinned in `report-dataset-panel-echo-decisions.test.ts`. No key was added, removed or renamed — the bundles' shape is unchanged.