MetadataFieldsPanel renders one control per declared field (enum→select,
tags→chips, text→input), read-only without contribute access, saving changed
values via saveEntryMeta (direct sidecar commit). Wired into the canonical
main view, gated on the collection declaring fields (INV-5). saveEntryMeta
API client added.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Ben Stull