test(#122): Add test for completed Unbuilding suppressing alignment UI

The fix in renderAlignment() already checks both G.dismantleActive
and G.dismantleComplete, but only the active case had a test.

Added: "completed Unbuilding suppresses pending alignment event UI"
- Sets G.pendingAlignment = true and G.dismantleComplete = true
- Verifies alignment-ui is empty and hidden

All 11 dismantle tests pass.

Closes #122

tests/dismantle.test.cjs

@@ -275,6 +275,18 @@ test('active Unbuilding suppresses pending alignment event UI', () => {
   assert.equal(document.getElementById('alignment-ui').style.display, 'none');
 });
 
+test('completed Unbuilding suppresses pending alignment event UI', () => {
+  const { G, renderAlignment, document } = loadBeacon({ includeRender: true });
+
+  G.pendingAlignment = true;
+  G.dismantleComplete = true;
+
+  renderAlignment();
+
+  assert.equal(document.getElementById('alignment-ui').innerHTML, '');
+  assert.equal(document.getElementById('alignment-ui').style.display, 'none');
+});
+
 test('stage five lasts long enough to dissolve every resource card', () => {
   const { G, Dismantle } = loadBeacon();