fix: final review minors m-1 to m-8

- m-1: the no-change Divi result carries preview_url/edit_url too
- m-2: overview names replace-text's per-page tree_rev
- m-3: divi-shortform documents validation_failed vs not_found for unknown IDs
- m-4: DiviWriter/DiviPageLoader final (no mocks left), neutral NewDraft
  log detail, snapshots are Etappe 4
- m-5: Tested up to 7.1, changelog completed
- m-6: content-create warns when the extras changed the stored layout
- m-7: deleting a whole section outlines nothing instead of the next one
- m-8: uninstall removes the user meta lit_mcp_log_per_page; readme lists it

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

tests/Unit/Integrations/Divi/Pages/DiviWriterTest.php

@@ -105,10 +105,43 @@ final class DiviWriterTest extends TestCase
         $writer = $this->writer($saver, FakeChangeLog::forbidden());
         $page = $writer->page(['post_id' => 7, 'tree_rev' => Rev::of($content)]);
 
+        Functions\when('get_preview_post_link')->justReturn('https://kunde.test/?page_id=7&preview=true');
+
         $result = $writer->save('lit/divi-update', $page, new DiviChange('nichts'), []);
 
         self::assertSame(Rev::of($content), $result['tree_rev']);
         self::assertStringStartsWith('Keine Änderung', $result['summary']);
+        // Review m-1: the same result shape as a save, URLs included.
+        self::assertSame('https://kunde.test/?page_id=7&et_fb=1', $result['edit_url']);
+        self::assertSame('https://kunde.test/?page_id=7&preview=true', $result['preview_url']);
+    }
+
+    /** Review m-7: a deleted whole section has no section left to outline (its ID now names the next one). */
+    public function testDeletingAWholeSectionOutlinesNothing(): void
+    {
+        $content = DiviFixtures::markup('synthetic-basic.html');
+        DiviFixtures::givenPost($content);
+        $saver = Mockery::mock(DiviSaver::class);
+        $saver->allows('save')->andReturnUsing(static function (WP_Post $post, string $new): array {
+            DiviFixtures::givenPost($new);
+
+            return ['revision_id' => 811, 'warnings' => []];
+        });
+        $input = ['post_id' => 7, 'tree_rev' => Rev::of($content)];
+        Functions\when('do_action')->justReturn(null);
+        Functions\when('get_preview_post_link')->justReturn('https://kunde.test/?page_id=7&preview=true');
+        $writer = $this->writer($saver, new FakeChangeLog(55));
+        $page = $writer->page($input);
+        $section = $page->index->find('s0');
+        $page->document->children()[0]->removeChild($section);
+
+        $result = $writer->save('lit/divi-delete', $page, (new DiviChange('gelöscht'))->removed('s0', $section), $input);
+
+        self::assertNull($result['outline']);
+        self::assertSame([['s0', 'divi/section', 'deleted']], array_map(
+            static fn (array $c): array => [$c['id'], $c['type'], $c['action']],
+            $result['changed']
+        ));
     }
 
     public function testSavesAndReportsChangedNodesOutlineAndTheNewTreeRev(): void

tests/Unit/Integrations/WordPress/Content/ContentCreateDiviTest.php

@@ -123,6 +123,46 @@ final class ContentCreateDiviTest extends TestCase
         self::assertArrayHasKey('divi', $this->ability(null)->inputSchema()['properties']);
     }
 
+    /**
+     * Review m-6: the extras are written after the layout; if that re-saves the entry (e.g. Pods
+     * object fields call wp_update_post, a save_post listener) and the layout changes, say so.
+     */
+    public function testALayoutChangedByTheExtrasIsReported(): void
+    {
+        $composer = $this->composer();
+        $composer->allows('write')->andReturn(['warnings' => [], 'outline' => 's0 divi/section']);
+        Functions\when('wp_insert_post')->justReturn(42);
+        $this->stubStoredDraft();
+        $writer = Mockery::mock(PostWriter::class);
+        $writer->allows('prepare')->andReturn(['fields' => [], 'terms' => [], 'warnings' => []]);
+        $writer->allows('postData')->andReturn(['post_title' => 'Start']);
+        $writer->allows('deniedMeta')->andReturn([]);
+        $writer->expects('writeExtras')->andReturnUsing(static function (): void {
+            Functions\when('get_post')->justReturn(new WP_Post([
+                'ID' => 42, 'post_title' => 'Start', 'post_type' => 'page', 'post_status' => 'draft',
+                'post_content' => '<!-- wp:divi/placeholder /-->',
+            ]));
+        });
+
+        $result = $this->ability($composer, $writer)->execute(self::INPUT + ['fields' => ['role' => 'x']]);
+
+        self::assertSame(Rev::of('<!-- wp:divi/placeholder /-->'), $result['tree_rev'], 'the stored state');
+        self::assertContains(ContentCreateAbility::LAYOUT_CHANGED, $result['warnings']);
+
+        $this->stubStoredDraft();
+        $unchanged = $this->ability($this->composerWriting(), $this->writer())->execute(self::INPUT);
+        self::assertNotContains(ContentCreateAbility::LAYOUT_CHANGED, $unchanged['warnings']);
+    }
+
+    /** @return ContentComposer&MockInterface */
+    private function composerWriting(): ContentComposer
+    {
+        $composer = $this->composer();
+        $composer->allows('write')->andReturn(['warnings' => [], 'outline' => null]);
+
+        return $composer;
+    }
+
     public function testWithoutDiviTheComposerIsNotUsed(): void
     {
         $composer = Mockery::mock(ContentComposer::class);

tests/Unit/Integrations/WordPress/Content/NewDraftTest.php

@@ -33,7 +33,7 @@ final class NewDraftTest extends TestCase
             self::assertSame(42, $e->postId);
             self::assertSame('Grund für den Client.', $e->reason);
             self::assertSame(
-                'Extras of new post 42 could not be written: layout kaputt; rollback: term 15 bleibt; '
+                'Writing new post 42 failed after the insert: layout kaputt; rollback: term 15 bleibt; '
                     . 'draft 42 could not be deleted: delete_post hook kaputt [rollback incomplete]',
                 $e->getMessage()
             );

tests/Unit/UninstallTest.php

@@ -35,6 +35,7 @@ final class UninstallTest extends TestCase
         Functions\expect('restore_current_blog')->twice();
         Functions\expect('delete_transient')->twice()->with(ConnectionStatus::ENDPOINT_TRANSIENT);
         Functions\expect('wp_clear_scheduled_hook')->twice()->with(ChangeLogCleanup::HOOK);
+        Functions\expect('delete_metadata')->once()->with('user', 0, 'lit_mcp_log_per_page', '', true);
         $deleted = [];
         Functions\when('delete_option')->alias(static function (string $option) use (&$deleted): bool {
             $deleted[] = $option;

tests/Unit/UninstallerTest.php

@@ -8,6 +8,7 @@ use Brain\Monkey\Functions;
 use LIT\MCP\Abilities\ExposurePolicy;
 use LIT\MCP\Access;
 use LIT\MCP\Admin\ConnectionStatus;
+use LIT\MCP\Admin\LogTab;
 use LIT\MCP\ChangeLog\ChangeLogCleanup;
 use LIT\MCP\ChangeLog\ChangeLogInstaller;
 use LIT\MCP\Limits;
@@ -37,6 +38,8 @@ final class UninstallerTest extends TestCase
         Functions\expect('restore_current_blog')->never();
         Functions\expect('delete_transient')->once()->with(ConnectionStatus::ENDPOINT_TRANSIENT);
         Functions\expect('wp_clear_scheduled_hook')->once()->with(ChangeLogCleanup::HOOK);
+        // Review m-8: the Protokoll screen option is user meta (network-wide): removed once.
+        Functions\expect('delete_metadata')->once()->with('user', 0, LogTab::PER_PAGE_OPTION, '', true);
         $deleted = [];
         Functions\when('delete_option')->alias(static function (string $option) use (&$deleted): bool {
             $deleted[] = $option;
@@ -62,6 +65,7 @@ final class UninstallerTest extends TestCase
         Functions\expect('restore_current_blog')->twice();
         Functions\expect('delete_transient')->twice()->with(ConnectionStatus::ENDPOINT_TRANSIENT);
         Functions\expect('wp_clear_scheduled_hook')->twice()->with(ChangeLogCleanup::HOOK);
+        Functions\expect('delete_metadata')->once()->with('user', 0, LogTab::PER_PAGE_OPTION, '', true);
         Functions\when('delete_option')->justReturn(true);
 
         Uninstaller::run();