feat: analyze_folder orchestrates all checks

tests/test_analyzer.py

@@ -88,3 +88,24 @@ def test_different_images_are_not_duplicates(tmp_path):
     p2 = make_diagonal_image(tmp_path, "diagonal.jpg")
     groups = find_duplicates([p1, p2], threshold=8)
     assert len(groups) == 0
+
+
+from analyzer import analyze_folder
+
+
+def test_analyze_folder_returns_results(tmp_path):
+    make_test_image(tmp_path, color=(128, 128, 128))
+    from PIL import Image
+    white = tmp_path / "white.jpg"
+    Image.new("RGB", (100, 100), color=(255, 255, 255)).save(white)
+
+    results = analyze_folder(
+        folder=str(tmp_path),
+        blur_threshold=100,
+        over_threshold=240,
+        under_threshold=30,
+        dup_threshold=8,
+        use_ai=False,
+    )
+    reasons_flat = [r for item in results for r in item["reasons"]]
+    assert "ueberbelichtet" in reasons_flat