Windows: add Docker update script

tests/test_windows_update_script.py

@@ -0,0 +1,18 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def test_windows_update_script_uses_safe_docker_update_flow():
+    script = (ROOT / "update_windows.bat").read_text(encoding="utf-8")
+    lowered = script.lower()
+
+    assert 'pushd "%~dp0"' in lowered
+    assert "where git" in lowered
+    assert "where docker" in lowered
+    assert "docker compose version" in lowered
+    assert "git pull --ff-only" in lowered
+    assert "docker compose up -d --build" in lowered
+    assert "docker image prune -f" in lowered
+    assert "pause" in lowered