feat: lit/divi-replace-text with dry run and per-page tree_rev targets

TextReplacer replaces only in plain-text segments (S8 split), outside
script/style bodies, inserts the replacement cleaned per field kind and
refuses any result whose tags, entities or references differ from the
original plus the inserted text. Unchanged strings are never cleaned.
Per page all or nothing with the tree_rev lock; Throwables are reported
per page (S10).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

src/Integrations/Divi/DiviIntegration.php

@@ -15,6 +15,7 @@ use LIT\MCP\Integrations\Divi\Pages\DiviMoveAbility;
 use LIT\MCP\Integrations\Divi\Pages\DiviNodeGetAbility;
 use LIT\MCP\Integrations\Divi\Pages\DiviOutlineAbility;
 use LIT\MCP\Integrations\Divi\Pages\DiviPageLoader;
+use LIT\MCP\Integrations\Divi\Pages\DiviReplaceTextAbility;
 use LIT\MCP\Integrations\Divi\Pages\DiviSaver;
 use LIT\MCP\Integrations\Divi\Pages\DiviUpdateAbility;
 use LIT\MCP\Integrations\Divi\Pages\DiviWriter;
@@ -65,6 +66,7 @@ final class DiviIntegration implements Integration
             new DiviMoveAbility($writer),
             new DiviDeleteAbility($writer),
             new DiviDuplicateNodeAbility($writer),
+            new DiviReplaceTextAbility($this->schema, $loader, $writer),
         ];
     }
 }