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/core/http/error-handler.interceptor.ts

@@ -52,12 +52,20 @@ export class ErrorHandlerInterceptor implements HttpInterceptor {
       }
     }
 
-    const isClientImage404 = status === 404 && request.url.includes('/clients/') && request.url.includes('/images');
+    const isClientImageRequest = request.url.includes('/clients/') && request.url.includes('/images');
+    const isClientKycRequest = request.url.match(/\/clients\/\d+\/kyc$/);
+    const isSilentRequest = isClientImageRequest || isClientKycRequest;
 
-    if (!environment.production && !isClientImage404) {
+    if (!environment.production && !isSilentRequest) {
       log.error(`Request Error: ${errorMessage}`);
     }
 
+    // Silently handle expected 403/404 errors (no image, no KYC record)
+    // Throw instead of EMPTY so component-level catchError can handle it
+    if (isSilentRequest && (status === 403 || status === 404)) {
+      throw response;
+    }
+
     if (status === 401 || (environment.oauth.enabled && status === 400)) {
       this.alertService.alert({ type: 'Authentication Error', message: 'Invalid User Details. Please try again!' });
     } else if (status === 403 && errorMessage === 'The provided one time token is invalid') {
@@ -73,12 +81,7 @@ export class ErrorHandlerInterceptor implements HttpInterceptor {
         message: errorMessage || 'You are not authorized for this request!'
       });
     } else if (status === 404) {
-      // Check if this is an image request that should be silently handled (client profile image)
-      if (isClientImage404) {
-        // Don't show alerts for missing client images
-        // This is an expected condition, not an error
-        return EMPTY;
-      } else {
+      {
         this.alertService.alert({
           type: this.translate.instant('error.resource.not.found'),
           message: errorMessage || 'Resource does not exist!'
@@ -94,8 +97,11 @@ export class ErrorHandlerInterceptor implements HttpInterceptor {
         type: this.translate.instant('error.resource.notImplemented.type'),
         message: this.translate.instant('error.resource.notImplemented.message')
       });
-    } else {
-      this.alertService.alert({ type: 'Unknown Error', message: 'Unknown Error. Please try again later.' });
+    } else if (status === 503) {
+      this.alertService.alert({
+        type: 'Service Unavailable',
+        message: errorMessage || 'The server is currently unable to handle the request. Please try after some time.'
+      });
     }
 
     throw response;