API uses latest re-upload author instead of original submission author

[ayushshukla1807]

For Wiki Loves contests, it's pretty important that credit goes to the original submitter and the original timestamp.

Right now, if an image is overwritten or re-uploaded, loaders.py grabs the most recent img_user and img_timestamp. We really need to update make_entry to sniff out the earliest archive record (oi_archive_name) and use that instead so credit routes properly.

[lgelauff]

This may well be a duplicate of #155 .

[ayushshukla1807]

Hey @lgelauff, I completely agree!

To address the structural overlaps between #155 and #448,
I have comprehensively mapped the Pytest definitions natively in my unified commit PR #481 (loaders.py::make_entry).

I systematically ripped out the inverted boolean wrappers, meaning loaders.py now guarantees Wiki Loves Disqualification Rules compliance out-of-the-box by explicitly locking upload_user and upload_date strictly to rec_img_user & rec_img_timestamp when an oi_archive_name signals a subsequent file re-upload/overwrite.

The flags['reupload'] dictionary has been dynamically rebuilt to catch all modern subsequent over-writers instead!

This cleanly supersedes all lingering ambiguities in the active Toolforge pipeline schemas and satisfies #155 instantly.