fix: divi-node-get rev + short type, divi-outline id validation

- lit/divi-node-get now also returns the post-level rev (Rev::ofPost, same
  optimistic lock lit-content-update needs) next to tree_rev, and reports a
  node's type as the short name ("button"), matching lit-divi-outline instead
  of the namespaced "divi/button". description() notes that $variable(...)$
  values shown are re-validated when written, never taken over unchecked.
- lit/divi-outline validates its optional `id` input against the same
  path-ID pattern lit-divi-node-get uses (a malformed id is now a validation
  error, not a "not found"), and its outputSchema's per-node `required` list
  now includes info/presets/children, which are always present.
- NodeSummary::label() (the admin label shown in outlines and node-get)
  whitespace-normalizes and bounds its result via Text::shorten(), like every
  other summary string, instead of returning a raw, unbounded value.
- docs/superpowers/notes/.../etappe-2a-abnahme.md corrected: only a global
  module is "nur lesbar" - a specialty section is a normal, editable
  divi/section block; the outline just marks it "[specialty]".

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

src/Integrations/Divi/BlockTree/NodeSummary.php

@@ -18,11 +18,19 @@ final class NodeSummary
     /** Keys of object values that carry readable text, in this order. */
     private const TEXT_KEYS = ['text', 'title', 'label', 'alt', 'address', 'linkUrl', 'url', 'src'];
 
+    /** The admin label is a one-line title in the layers panel, never an unbounded copy. */
+    private const LABEL_LIMIT = 80;
+
     public static function label(Block $block): string
     {
         $label = AttrMap::desktop($block->attrs(), 'module.meta.adminLabel');
+        if (! is_string($label) || $label === '') {
+            return '';
+        }
 
-        return is_string($label) ? $label : '';
+        $normalized = trim((string) preg_replace('/\s+/u', ' ', $label));
+
+        return Text::shorten($normalized, self::LABEL_LIMIT);
     }
 
     public static function excerpt(Block $block, int $max = 60): string