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/directives/has-permission/has-permission.directive.ts

@@ -70,12 +70,16 @@ export class HasPermissionDirective {
    * - No value was passed to the has permission directive.
    */
   private hasPermission(permission: string) {
-    // If RBAC is disabled, show all menus/buttons (backward compatibility)
-    if (!this.rbacEnabled) {
+    permission = permission.trim();
+
+    // Menu & Sidebar permissions are ALWAYS enforced (hide/show nav items based on role)
+    const isMenuPermission = permission.startsWith('MENU_') || permission.startsWith('SIDEBAR_');
+
+    // For non-menu permissions: if RBAC is disabled, show everything (backward compatibility)
+    if (!this.rbacEnabled && !isMenuPermission) {
       return true;
     }
 
-    permission = permission.trim();
     if (this.userPermissions.includes('ALL_FUNCTIONS')) {
       return true;
     } else if (permission !== '') {