The sites.html edit modal reads peer_inbound_access_key from the row's
data attribute, but the peers JSON built by sites_dashboard omitted the
field, so every edit cleared an existing key. Add the field to the JSON
so the modal renders the stored value and preserves it on save.
- Implement missing /ui/buckets/{bucket}/objects/search route used by the
Objects tab filter; previously returned 404 and showed 'Search failed'.
- Filter __checksum_*__ and __size__ sentinels from the object metadata
panel so users no longer see internal keys in the UI.
- Include a body field in bucket-delete flash message so the toast shows
distinct title and body.
- Replace Tera boolean 'or' operator with if/else fallback in
replication_wizard.html, sites.html, iam.html.
