Enhance documentation and workflow management in EspoCRM

- Update README.md to include a table of contents and detailed sections on workflow management and custom scripts.
- Remove deprecated 'runWorkflow' field from CVmhErstgespraech localization files.
- Add 'runWorkflow' field to detail layout for CVmhErstgespraech.
- Update workflow_manager.php to improve workflow listing and management functionality.
- Adjust cache timestamps in config.php.
- Create CUSTOM_DIRECTORY.md to outline the custom directory structure and best practices.
- Add README.md for workflow definitions with usage examples and JSON format specifications.
- Introduce new workflow definitions for 'vmh-erstberatung-abschließen' and its backup.

data/config.php

@@ -348,8 +348,8 @@ return [
     0 => 'youtube.com',
     1 => 'google.com'
   ],
-  'cacheTimestamp' => 1768945598,
-  'microtime' => 1768945598.792157,
+  'cacheTimestamp' => 1768949725,
+  'microtime' => 1768949725.049459,
   'siteUrl' => 'https://crm.bitbylaw.com',
   'fullTextSearchMinLength' => 4,
   'appTimestamp' => 1768843902,