fix(adopt_a_pet): match listing photographs to pet descriptions

[sarendis56]

Summary

Addresses the remaining pet-photo findings in WebHarbor #94. This focused follow-up targets the active review branch (#100), rebased onto its 1166ad6 tip.

• Give all 20 listings their own photograph, with image dimensions of at least 480 px on both axes.
• Correct the species/breed/coat mismatches, replace low-resolution thumbnails, and keep article banners separate from pet photographs.
• Use nine photographs from the recorded reference material and eleven attributed Wikimedia Commons photographs, with per-image provenance and a linked Photo credits page. The supplementary photographs represent fictional benchmark pets; they are not asserted to be photographs of real adoptable listings.
• Preserve every task, verifier, and non-image catalog field from the reviewer branch.

Paired assets

HF assets PR #67 now contains the matching images and seed image paths at 8316809f5eed94078c9b188e5c315f67df751be1. The archive uses only the supported adopt_a_pet/instance_seed/ and adopt_a_pet/static/images/ asset roots and excludes AppleDouble files and superseded images.

The code and asset update should land together. Keep the existing .assets-revision until the assets PR merges, then pin the immutable HF merge revision. This follow-up leaves that release step to the maintainers.

Verification

• All 272 existing verifier tests passed.
• 80 visible-browser photo checks passed: 20 listings at 1440, 768, 390, and 320 px. Navigation used the homepage search, pagination, and pet cards. No broken photos, horizontal overflow, or browser page errors were observed.
• Checked each revised photo visually against the listing's species, breed appearance, and coat description.
• Compared the old and revised seed catalogs: only the image column changed; SQLite integrity checks passed.
• Rebased container build passed; 27/27 sites ready at startup.
• Container reset returned ready: true; a direct byte comparison of the live and seed databases passed after reset.

Screenshots

Desktop — Archie now displays an Australian Shepherd photograph:

Mobile — Olive now displays a Siamese photograph, distinct from Teddy's Poodle photograph: