Add user reservation form feature

- Created new user-friendly reservation form component (prenotazione-form-user)
- Added getCurrentUser() method to UtenteAppService
- Added route /prenotazione/nuova for user reservation form
- Added Italian translations for new UI elements
- Form includes booking details and auto-populated user data
- Radio button toggle for private/company data display
- Form validation with required facility selection
- Created comprehensive documentation in frontend-changes.md

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.jhipster/Struttura.json

@@ -43,18 +43,18 @@
   "pagination": "pagination",
   "relationships": [
     {
+      "relationshipSide": "right",
+      "relationshipType": "one-to-many",
       "otherEntityName": "disponibilita",
       "otherEntityRelationshipName": "struttura",
-      "relationshipName": "disponibilita",
-      "relationshipSide": "right",
-      "relationshipType": "one-to-many"
+      "relationshipName": "disponibilita"
     },
     {
+      "relationshipSide": "right",
+      "relationshipType": "one-to-many",
       "otherEntityName": "modelloLiberatoria",
       "otherEntityRelationshipName": "struttura",
-      "relationshipName": "moduliLiberatorie",
-      "relationshipSide": "right",
-      "relationshipType": "one-to-many"
+      "relationshipName": "moduliLiberatorie"
     }
   ],
   "searchEngine": "no",