docs: Divi guides shortform/placeholders, hints name the write tools; test: Divi write end-to-end; version 0.3.0

- Hints (PostPresenter::DIVI_NOTE, outline, catalog) and server instructions (tree_rev rule)
  name the Divi write tools; guides divi-shortform and divi-placeholders, additions to
  divi-structure, divi-attrs, overview (tool groups, 'nur lesen'), workflows, content-types.
- D7 wording and the S7 exception in readme, guides and spec 1.3/5.2; readme 0.3.0.
- ToolNamingTest: every referenced guide topic exists; overview lists exactly the topics.
- tests/Integration/divi-write-smoke.sh: all write tools via OAuth, editor without
  unfiltered_html with benign probes (S6), Divi's own save filters on the new fixture
  synthetic-divi-filters.html (S7); admin-render.php accepts the new wrap class.

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/DiviReadAbilitiesTest.php

@@ -84,11 +84,12 @@ final class DiviReadAbilitiesTest extends TestCase
     {
         DiviPageLoaderTest::givenPost('');
         $ability = new DiviOutlineAbility(new DiviPageLoader(DiviPageLoaderTest::schema()), $this->design());
-        self::assertSame(['Die Seite hat noch keinen Divi-Inhalt.'], $ability->execute(['post_id' => 7])['hints']);
+        self::assertStringContainsString('lit-divi-insert', $ability->execute(['post_id' => 7])['hints'][0]);
 
         DiviPageLoaderTest::givenPost(DiviPageLoaderTest::fixture('synthetic-mixed.html'));
         $hints = $ability->execute(['post_id' => 7])['hints'];
         self::assertStringContainsString('nur lesbar', $hints[0]);
+        self::assertStringContainsString('nur als Ganzes', $hints[0]);
     }
 
     public function testNodeGetReturnsFullFormShortformAndPresets(): void

tests/Unit/Integrations/Divi/Schema/DiviCatalogAbilityTest.php

@@ -35,6 +35,8 @@ final class DiviCatalogAbilityTest extends TestCase
         ));
         self::assertFalse($header[0]['shortform']);
         self::assertSame(DiviCatalogAbility::CODE_NOTE, $result['notes'][0]);
+        self::assertStringContainsString('"divi-shortform"', $result['notes'][1]);
+        self::assertStringContainsString('"divi-attrs"', $result['notes'][1]);
     }
 
     public function testDetailOfOneModule(): void