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>

tests/Unit/Integrations/Divi/BlockTree/OutlineTest.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace LIT\MCP\Tests\Unit\Integrations\Divi\BlockTree;
 
 use LIT\MCP\Integrations\Divi\BlockTree\AttrMap;
+use LIT\MCP\Integrations\Divi\BlockTree\Block;
 use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
 use LIT\MCP\Integrations\Divi\BlockTree\NodeSummary;
 use LIT\MCP\Integrations\Divi\BlockTree\Outline;
@@ -69,6 +70,24 @@ final class OutlineTest extends TestCase
         self::assertSame('', NodeSummary::textOf(new stdClass()));
     }
 
+    public function testLabelIsWhitespaceNormalizedAndBounded(): void
+    {
+        $block = self::blockWithAdminLabel("Hero  \n  Titel\twith  space");
+        self::assertSame('Hero Titel with space', NodeSummary::label($block));
+
+        $long = str_repeat('a', 200);
+        $shortened = NodeSummary::label(self::blockWithAdminLabel($long));
+        self::assertLessThan(200, mb_strlen($shortened));
+        self::assertStringEndsWith('…', $shortened);
+    }
+
+    private static function blockWithAdminLabel(string $label): Block
+    {
+        return Block::create('divi/text', [
+            'module' => ['meta' => ['adminLabel' => ['desktop' => ['value' => $label]]]],
+        ]);
+    }
+
     public function testAttrMapFlattenGetSetRemove(): void
     {
         $attrs = [