cleanup: remove tenant variant logic and enforce config-driven UI

src/app/facades/runtime/ui-runtime.facade.ts

@@ -1,7 +1,6 @@
 import { Injectable, signal } from '@angular/core';
 import { take } from 'rxjs/operators';
 import { ConfigService } from '../../core/config/config.service';
-import { environment } from '../../../environments/environment';
 
 interface UiRuntimeState {
   marketplaceName: string;
@@ -9,18 +8,16 @@ interface UiRuntimeState {
   logoUrl: string;
   contactEmail: string;
   themeId: string;
-  marketplaceVariant: string;
 }
 
 @Injectable({ providedIn: 'root' })
 export class UiRuntimeFacade {
   private readonly state = signal<UiRuntimeState>({
-    marketplaceName: environment.brandName,
-    marketplaceDisplayName: environment.brandFullName,
-    logoUrl: environment.logo,
-    contactEmail: environment.contactEmail,
-    themeId: environment.theme,
-    marketplaceVariant: this.resolveMarketplaceVariant(environment.theme)
+    marketplaceName: '',
+    marketplaceDisplayName: '',
+    logoUrl: '',
+    contactEmail: '',
+    themeId: ''
   });
 
   constructor(private readonly configService: ConfigService) {
@@ -30,9 +27,8 @@ export class UiRuntimeFacade {
           marketplaceName: bootstrap.branding.brandName,
           marketplaceDisplayName: bootstrap.branding.brandName,
           logoUrl: bootstrap.branding.logoUrl,
-          contactEmail: bootstrap.branding.supportEmail ?? environment.contactEmail,
-          themeId: bootstrap.theme.themeId,
-          marketplaceVariant: this.resolveMarketplaceVariant(bootstrap.theme.themeId)
+          contactEmail: bootstrap.branding.supportEmail ?? '',
+          themeId: bootstrap.theme.themeId
         });
       }
     });
@@ -57,17 +53,4 @@ export class UiRuntimeFacade {
   themeId(): string {
     return this.state().themeId;
   }
-
-  marketplaceVariant(): string {
-    return this.state().marketplaceVariant;
-  }
-
-  isMarketplaceVariant(variant: string): boolean {
-    return this.marketplaceVariant() === variant;
-  }
-
-  private resolveMarketplaceVariant(themeId: string): string {
-    void themeId;
-    return 'default';
-  }
 }