Spec for validation report "cover page" for individual collections (e.g., Dates, Type, Rights)

[aturner]

Spec for a new validation report (per collection ) "cover page" summarizing key results

Also include:

• Records with None thumbnail.path values (see https://cdlib.slack.com/archives/C069LNM1Q/p1732561005757309)

Exhibitions:

• Are any of these objects in exhibitions? (Perhaps a total count of records as well as a list of identifiers?)