chore: apply linting fixes and expand ruff coverage to test suite

src/pygui/ISC/AboutDialog.qml

@@ -3,6 +3,14 @@ import QtQuick.Controls
 import QtQuick.Layouts
 import ISC
 
+// TODO P3.1 + P3.2: license grid, "Load License" picker, version binding
+//   THINKING: C# parity requires the dgvLicense grid (Wafer SN, Mfg Date,
+//   License Level, License Date) fed from AES-128-CBC .bin files under
+//   <app_data>/licenses/ — CryptoHelper (backend/crypto/crypto_helper.py)
+//   already has the primitives; the missing piece is the license file model
+//   (P3.1 backend). "Version 0.1.0" below is hardcoded and will drift from
+//   pyproject.toml — expose importlib.metadata.version("pygui") via a context
+//   property instead (P3.2). See docs/pending/alpha-release-polish-plan.md §3.
 Popup {
     id: root
     modal: true