test: FakeChangeLog and SchemaFixture instead of repeated mocks (T2)

- tests/Support/FakeChangeLog extends ChangeLog: records record()/recordPartial()
  calls, increasing ids, optional failure; new FakeChangeLog(id) / partialsOnly() /
  any(id) / forbidden() mirror what the replaced mocks allowed. assertRecorded() /
  assertPartials() check count and the named arguments. Calls a fake does not allow
  throw and are also verified in TestCase::tearDown (one assertion per test that
  uses a fake), so swallowed change-log calls still fail like a never() expectation.
- All ChangeLog mocks of ability/integration tests replaced (the admin tests that
  stub query/purge/clear keep their mocks); expectException tests that checked the
  partial log now catch and assert.
- SchemaFixture::managed(?divi) replaces the 21 isManaged-only ContentSchema mocks;
  DiviFixtures::schema() uses it.
Tests 1397 -> 1404 (FakeChangeLogTest); no test has fewer assertions.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/Unit/TestCase.php

@@ -6,6 +6,7 @@ namespace LIT\MCP\Tests\Unit;
 
 use Brain\Monkey;
 use Brain\Monkey\Functions;
+use LIT\MCP\Tests\Support\FakeChangeLog;
 use Mockery\Adapter\Phpunit\MockeryPHPUnitIntegration;
 use PHPUnit\Framework\TestCase as BaseTestCase;
 
@@ -35,5 +36,6 @@ abstract class TestCase extends BaseTestCase
     {
         Monkey\tearDown();
         parent::tearDown();
+        FakeChangeLog::verify();
     }
 }