fix: Lint fixes of core and repositories tests

tests/repositories/test_sound.py

@@ -1,14 +1,19 @@
 """Tests for sound repository."""
+# ruff: noqa: ARG002, PLR2004
 
 from collections.abc import AsyncGenerator
 
 import pytest
 import pytest_asyncio
+from sqlalchemy.exc import IntegrityError
 from sqlmodel.ext.asyncio.session import AsyncSession
 
 from app.models.sound import Sound
 from app.repositories.sound import SoundRepository
 
+# Constants
+MIN_POPULAR_SOUNDS = 3
+
 
 class TestSoundRepository:
     """Test sound repository operations."""
@@ -306,7 +311,7 @@ class TestSoundRepository:
         # Get popular sounds
         popular_sounds = await sound_repository.get_popular_sounds(limit=10)
 
-        assert len(popular_sounds) >= 3
+        assert len(popular_sounds) >= MIN_POPULAR_SOUNDS
         # Should be ordered by play_count desc
         assert popular_sounds[0].play_count >= popular_sounds[1].play_count
         # The highest play count sound should be first
@@ -372,5 +377,5 @@ class TestSoundRepository:
         }
 
         # Should fail due to unique constraint on hash
-        with pytest.raises(Exception):  # SQLAlchemy IntegrityError or similar
+        with pytest.raises(IntegrityError, match="UNIQUE constraint failed"):
             await sound_repository.create(duplicate_sound_data)