feat: per-subName attribute-path kinds for composite Divi paths

lit/divi-catalog's path_kinds previously named one kind per whole attribute
path, built from Divi's metadata component name alone. For a composite path
(Divi groups several named sub-fields, "subName", under one path – e.g.
buttonOne.innerContent holds "text" and "linkUrl") that was wrong: the whole
path got one guessed kind (or none), even though the sub-fields can differ
(fullwidth-header's buttonOne/buttonTwo.innerContent -> "text", though it
also carries a "linkUrl"; image.innerContent -> "image", though the value
also carries alt/id/titleText the metadata never names on its own).

AttrPathIndex::kinds() now resolves a composite path to a map
subName => kind instead, preferring Divi's features.dynamicContent.type over
the (often shared/generic) field component for a named sub-field – this is
what tells a button's plain text sub-field apart from its linkUrl sub-field,
both of which use the same generic "divi/text" component. A plain (non-
composite) path is unaffected. Any subName the metadata never names (or that
disagrees between candidates) is therefore simply absent from the map, and
ModuleCatalog::pathKind() defaults it, like every unresolved path, to
"unknown" - the strictest routing for 2b's sanitizer, never a guess.

ModuleCatalog::pathKind() gains an optional $subName parameter to read a
composite path's map. docs/guides/divi-attrs.md documents the new shape and
that lit-divi-catalog without `module` lists all modules.

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

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

@@ -60,6 +60,19 @@ final class DiviCatalogAbilityTest extends TestCase
         self::assertArrayNotHasKey('button.innerContent', $button['path_kinds']);
     }
 
+    /** A composite path (several named sub-fields under one attribute path) surfaces as a
+     *  subName => kind map, not a single guessed string (spec §5.6, ruling F1 #1). */
+    public function testDetailExposesCompositePathKindsAsASubNameMap(): void
+    {
+        $header = $this->ability()->execute(['module' => 'divi/fullwidth-header'])['module'];
+
+        self::assertSame(
+            ['text' => 'text', 'linkUrl' => 'url'],
+            $header['path_kinds']['buttonOne.innerContent']
+        );
+        self::assertSame(['src' => 'image'], $header['path_kinds']['image.innerContent']);
+    }
+
     public function testUnknownModuleAndPermission(): void
     {
         self::assertSame('lit_not_found', $this->ability()->execute(['module' => 'slider-pro'])->get_error_code());