diff --git a/tests/unit/test_in_memory_repositories.py b/tests/unit/test_in_memory_repositories.py
old mode 100755
new mode 100644
index 1e7286384..c90371b92
--- a/tests/unit/test_in_memory_repositories.py
+++ b/tests/unit/test_in_memory_repositories.py
@@ -8,10 +8,10 @@ from datetime import datetime
 
 import pytest
 
-from packages.adapters.in_memory.project_repository import InMemoryProjectRepository
 from packages.adapters.in_memory.classification_job_repository import InMemoryClassificationJobRepository
 from packages.adapters.in_memory.ingest_job_repository import InMemoryIngestJobRepository
-from packages.domain import Project, ClassificationJob, IngestJob
+from packages.adapters.in_memory.project_repository import InMemoryProjectRepository
+from packages.domain import ClassificationJob, IngestJob, Project
 
 # ── Project Repository ──────────────────────────────────────────────────────
 
diff --git a/tests/unit/test_render_audio_utils.py b/tests/unit/test_render_audio_utils.py
old mode 100755
new mode 100644
index 751bcd12d..dd24e7daa
--- a/tests/unit/test_render_audio_utils.py
+++ b/tests/unit/test_render_audio_utils.py
@@ -12,7 +12,6 @@ from types import SimpleNamespace
 from unittest.mock import MagicMock
 
 import pytest
-
 from video_processing.render_audio import RenderContext, clip_effective_duration
 
 
diff --git a/tests/unit/test_sticker_engine.py b/tests/unit/test_sticker_engine.py
old mode 100755
new mode 100644
index cf8056bb5..bdf7f7f04
--- a/tests/unit/test_sticker_engine.py
+++ b/tests/unit/test_sticker_engine.py
@@ -8,7 +8,6 @@
 from __future__ import annotations
 
 import pytest
-
 from video_processing.sticker_engine import (
     POSITION_PRESETS,
     STICKER_CATEGORIES,
diff --git a/tests/unit/test_subtitle_render_engine.py b/tests/unit/test_subtitle_render_engine.py
old mode 100755
new mode 100644
index d43bd5806..fe69ff40f
--- a/tests/unit/test_subtitle_render_engine.py
+++ b/tests/unit/test_subtitle_render_engine.py
@@ -8,7 +8,6 @@
 from __future__ import annotations
 
 import pytest
-
 from video_processing.subtitle_render_engine import (
     SubtitleSegment,
     SubtitleStyle,
diff --git a/tests/unit/test_tts_engine.py b/tests/unit/test_tts_engine.py
old mode 100755
new mode 100644
index 3e5e77a58..8cac1d17b
--- a/tests/unit/test_tts_engine.py
+++ b/tests/unit/test_tts_engine.py
@@ -11,9 +11,9 @@ from pathlib import Path
 from unittest.mock import MagicMock
 
 import pytest
+from video_processing.tts_engine import TtsEngine, VoiceoverResult, VoiceoverSegment
 
 from packages.domain.tts_config import TtsConfig
-from video_processing.tts_engine import TtsEngine, VoiceoverResult, VoiceoverSegment
 
 
 class TestVoiceoverSegment: