feat: non-individual entity UI improvements — hide individual-only sections, fix legal form display, send extended fields to API

- Hide Family Members tab/section for non-individual entities in client view, create flow, and preview
- Hide Financial & Classification section for non-individual entities in personal data and preview
- Fix legal form column in clients list — fetch legalForm from client API for correct display
- Add person/business icon before client name in list rows
- Remove unsupportedNpd filter — send authorizedSignatory, additionalInfo, dateOfRegistration to API
- Add registration number format hint (mat-hint) based on constitution type
- Add spacing between verification row and constitution type dropdowns
- Reduce table cell padding and prevent action buttons from being clipped
- Add missing MPL-2.0 license headers

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

src/app/shared/icons.module.ts

@@ -169,7 +169,11 @@ import {
   faSlidersH,
   faPrint,
   faCertificate,
-  faPaperclip
+  faPaperclip,
+  faCalendarTimes,
+  faStar,
+  faCrop,
+  faStamp
 } from '@fortawesome/free-solid-svg-icons';
 
 /**
@@ -345,7 +349,11 @@ export class IconsModule {
       faSlidersH,
       faPrint,
       faCertificate,
-      faPaperclip
+      faPaperclip,
+      faCalendarTimes,
+      faStar,
+      faCrop,
+      faStamp
     );
   }
 }