chore: audit RF4 media quality

tests/test_media_assets.py

@@ -6,7 +6,7 @@ import io
 import pytest
 from PIL import Image
 
-from rf4_research.media_assets import approve_stored_assets, audit_media_catalog, extract_media_candidates, inspect_image, media_coverage, merge_manifest, reconcile_queued_duplicates, review_asset, store_asset
+from rf4_research.media_assets import approve_stored_assets, audit_media_catalog, extract_media_candidates, inspect_image, media_coverage, media_quality_report, merge_manifest, reconcile_queued_duplicates, review_asset, store_asset
 
 
 def test_extracts_and_classifies_unique_https_media() -> None:
@@ -179,3 +179,17 @@ def test_bulk_approval_only_publishes_stored_assets(tmp_path: Path) -> None:
     assert assets[0]["entity_key"] == "fish:pike"
     assert assets[0]["review_note"] == "owner approved"
     assert assets[1]["status"] == "queued"
+
+
+def test_quality_report_finds_low_resolution_asset_and_known_alternative(tmp_path: Path) -> None:
+    (tmp_path / "manifest.json").write_text(json.dumps({"assets": [
+        {"entity_type": "fish", "label": "Щука", "status": "approved", "asset_url": "https://small.example/pike.png", "width": 48, "height": 48},
+        {"entity_type": "fish", "label": "Щука", "status": "duplicate", "asset_url": "https://large.example/pike.webp", "duplicate_of": "https://small.example/pike.png"},
+        {"entity_type": "fish", "label": "Окунь", "status": "approved", "asset_url": "https://large.example/perch.webp", "width": 1024, "height": 1024},
+    ]}), encoding="utf-8")
+
+    report = media_quality_report(tmp_path)
+
+    assert (report["published"], report["below_minimum"], report["upsampled_in_cards"]) == (2, 1, 1)
+    assert report["known_alternative_urls"] == 1
+    assert report["by_source"]["small.example"]["below_minimum"] == 1