Refactor: remove AGPL imgly dependency and migrate background removal to python backend

src/components/BrandArchitecture.tsx

@@ -14,6 +14,7 @@ interface BrandArchitectureProps {
   designMD: DesignMD;
   handleDesignChange: (key: keyof DesignMD, value: string | number | string[] | boolean) => void;
   onContinue: () => void;
+  onEditAsset?: (type: keyof DesignMD, url: string) => void;
 }
 
 const TABS = [
@@ -25,7 +26,7 @@ const TABS = [
 
 type TabId = typeof TABS[number]['id'];
 
-export const BrandArchitecture: React.FC<BrandArchitectureProps> = ({ company, handleCompanyChange, designMD, handleDesignChange, onContinue }) => {
+export const BrandArchitecture: React.FC<BrandArchitectureProps> = ({ company, handleCompanyChange, designMD, handleDesignChange, onContinue, onEditAsset }) => {
   const [zoom, setZoom] = useState(1);
   const [aspectRatio, setAspectRatio] = useState<'16:9'|'1:1'|'9:16'>('9:16');
   const [activeTab, setActiveTab] = useState<TabId>('general');
@@ -186,6 +187,7 @@ export const BrandArchitecture: React.FC<BrandArchitectureProps> = ({ company, h
               <BrandTabVisual 
                 designMD={designMD} 
                 handleDesignChange={handleDesignChange} 
+                onEditAsset={onEditAsset}
               />
             )}
             {activeTab === 'typography' && (
@@ -195,6 +197,7 @@ export const BrandArchitecture: React.FC<BrandArchitectureProps> = ({ company, h
               <BrandTabMedia
                 designMD={designMD}
                 handleDesignChange={handleDesignChange}
+                onEditAsset={onEditAsset}
               />
             )}