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_state.py

@@ -2,16 +2,13 @@
 
 import json
 import os
-import pytest
 from datetime import datetime, timezone
 from pathlib import Path
-from vlm.state import (
-    load_state,
-    save_state,
-    StateManager,
-    VALID_STATUSES
-)
+
+import pytest
+
 from vlm.models import FileState, StateStore
+from vlm.state import VALID_STATUSES, StateManager, load_state, save_state
 
 
 class TestLoadSaveState: