release: v0.2.0 repository hygiene, CI, and docs sync

Stop tracking personal workflow artifacts at repo root, add CI and MIT
license, align README and agent skills with artifacts/ defaults, and
enable Ruff in dev/CI so releases are verifiable without local-only runs.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_scanner.py

@@ -1,15 +1,14 @@
 """Unit tests for the inventory scanner module."""
 
-import os
-import threading
-import tempfile
-import time
 import csv
+import json
+import os
+import subprocess
+import threading
+import time
 from datetime import datetime, timezone
 from pathlib import Path
-from unittest.mock import patch, MagicMock
-import subprocess
-import json
+from unittest.mock import MagicMock, patch
 
 import pytest
 
@@ -17,10 +16,10 @@ from vlm.config import Config
 from vlm.models import VideoFile
 from vlm.scanner import (
     categorize_file,
-    scan_library,
     extract_metadata,
-    save_inventory_csv,
     load_inventory_csv,
+    save_inventory_csv,
+    scan_library,
 )
 
 
@@ -932,7 +931,6 @@ class TestInventoryReports:
         assert output_file.exists()
         
         # Read and verify content
-        import csv
         with open(output_file, 'r', encoding='utf-8') as f:
             # Skip comment lines
             lines = [line for line in f if not line.startswith('#')]
@@ -1179,7 +1177,6 @@ class TestInventoryReports:
         save_inventory_json(video_files, json_file, library_root)
         
         # Read CSV data
-        import csv
         with open(csv_file, 'r', encoding='utf-8') as f:
             lines = [line for line in f if not line.startswith('#')]
             reader = csv.DictReader(lines)