Replace inventory-counting risk with bounded workload scoring and separate confidence

tests/test_ui.py

@@ -141,3 +141,33 @@ class UITests(unittest.TestCase):
                     window.quick_save.click()
                 self.assertIn('LOCAL WINDOWS INVENTORY', report.read_text())
             window.close()
+
+    def test_policy_changes_preserve_history_and_confidence_is_visible(self):
+        import json
+        from samsara.analyzers.policy import load_policy
+        window=MainWindow()
+        fixture=Path('tests/fixtures/scoring/active_sql_server.json')
+        window.collection_done(json.loads(fixture.read_text()))
+        self.assertEqual(window.assessment['score'],70)
+        original_policy=window.assessment['scoring']['policy_id']
+        self.assertIn('Confidence:',window.coverage_note.text())
+        self.assertIn('Coverage gaps do not add risk points',window.coverage_note.text())
+        with tempfile.TemporaryDirectory() as folder:
+            policy=load_policy()
+            policy['scores']['observed_application_clients']=55
+            path=Path(folder)/'policy.json'
+            path.write_text(json.dumps(policy))
+            with patch('samsara.ui.window.QFileDialog.getOpenFileName',return_value=(str(path),'')):
+                window.choose_policy()
+            window.source.setCurrentIndex(window.source.findData('file'))
+            window.inventory_path.setText(str(fixture.resolve()))
+            window.start_collection()
+            self.assertFalse(window.policy_button.isEnabled())
+            self.finish(window)
+            self.assertEqual(window.assessment['score'],55)
+            self.assertNotEqual(window.assessment['scoring']['policy_id'],original_policy)
+            window.open_history(window.history_list.item(0))
+            self.assertEqual(window.assessment['score'],70)
+            self.assertEqual(window.assessment['scoring']['policy_id'],original_policy)
+            window.reset_policy()
+        window.close()