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

src/Integrations/WordPress/Content/PostPresenter.php

@@ -25,8 +25,9 @@ use WP_Post;
 class PostPresenter
 {
     /** How Divi content is read and changed with the Divi tools. */
-    public const DIVI_NOTE = 'Den Aufbau mit lit/divi-outline (direkt: lit-divi-outline) lesen, einzelne Knoten mit '
-        . 'lit/divi-node-get (direkt: lit-divi-node-get); ändern vorerst im Divi-Builder.';
+    public const DIVI_NOTE = 'Den Aufbau mit lit/divi-outline (direkt: lit-divi-outline) lesen und mit '
+        . 'lit/divi-insert, lit/divi-update, lit/divi-move bzw. lit/divi-delete (direkt: lit-divi-insert, '
+        . 'lit-divi-update, lit-divi-move, lit-divi-delete) ändern.';
 
     /** Divi content on a site where the Divi 5 builder is not loaded (no Divi tools registered). */
     public const DIVI_INACTIVE_NOTE = 'Der Divi-5-Builder ist auf dieser Website nicht aktiv, daher gibt es keine '