fix(test): unpin general-threshold test from old 0.95 default (alembic 0029)

tests/test_ml_suggestions.py

@@ -25,10 +25,13 @@ def _img(sha: str, predictions: dict) -> ImageRecord:
 
 @pytest.mark.asyncio
 async def test_threshold_filters_low_confidence_general(db):
+    # Default general threshold is 0.50 (alembic 0029 lowered it from
+    # 0.95). Use 0.30/0.60 to keep the test asserting threshold behavior
+    # rather than the exact cutoff number.
     img = _img(
         "a" * 64,
         {
-            "smile": {"category": "general", "confidence": 0.80},
+            "lowconf": {"category": "general", "confidence": 0.30},
             "sword": {"category": "general", "confidence": 0.97},
         },
     )
@@ -37,7 +40,7 @@ async def test_threshold_filters_low_confidence_general(db):
     sl = await SuggestionService(db).for_image(img.id)
     names = [s.display_name for s in sl.by_category.get("general", [])]
     assert "sword" in names
-    assert "smile" not in names
+    assert "lowconf" not in names
 
 
 @pytest.mark.asyncio