feat: add LegalAid entity — centralized legal aid data management

Replace scattered Case fields with a dedicated LegalAid entity that
holds all legal aid data (aid type, urgency, client contact, proceeding
details, legal analysis, recommendation, etc.). DirectAccessReport now
pulls from LegalAid for DOCX generation with automatic checkbox mapping.

- Add LegalAid entity with controller, layouts, i18n (he/en/fa)
- Remove cAidType, cUrgencyLevel, cAppointmentDate, cFilingDeadline,
  cLegalAidType from Case (migrated to LegalAid)
- Add legalAidType field to LegalAid (DirectAccess/Regular/Duty)
- Update DirectAccessReportService to use LegalAid entity
- Add update_legal_aid and get_legal_aid SmartAssistant tools
- Fix AfterInstall template entityType to LegalAid

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/AfterInstall.php

@@ -153,7 +153,7 @@ class AfterInstall
         $template = $entityManager->getNewEntity('DocumentTemplate');
         $template->set([
             'name' => 'דוח גישה ישירה',
-            'entityType' => 'Case',
+            'entityType' => 'LegalAid',
             'fileId' => $attachment->getId(),
         ]);
         $entityManager->saveEntity($template);