feat: Introduce configurable icon and card sizes for document views and desktop workspace.

frontend/src/desktop/DesktopWorkspace.tsx

@@ -38,8 +38,9 @@ interface DocumentSizeInfo {
 }
 
 // Fallback size computation
-const computeFallbackCardSize = (_doc: DeskDocument): DocumentSizeInfo => {
-  return { width: 200, height: 200, source: 'fallback' };
+const computeFallbackCardSize = (_doc: DeskDocument, defaultSize: number = 200): DocumentSizeInfo => {
+  const size = Math.round(defaultSize * (1 / Math.SQRT2));
+  return { width: size, height: size, source: 'fallback' };
 };
 
 export interface DesktopWorkspaceProps {
@@ -52,6 +53,7 @@ export interface DesktopWorkspaceProps {
   onDocumentTagDetach?: (docId: Identifier, tagId: Identifier) => void;
   tenantId?: Identifier | null;
   viewId?: string | null;
+  defaultCardSize?: number;
 }
 
 // Wrapper to handle hooks per card
@@ -86,6 +88,7 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
   onDocumentTagDetach,
   tenantId,
   viewId,
+  defaultCardSize = 200,
 }) => {
   const { openPreview } = usePreviewContext();
   const { addPointer, removePointer } = usePointerTracking();
@@ -179,8 +182,8 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
         return { width: meta.width, height: meta.height, source: 'metadata' };
     }
 
-    return computeFallbackCardSize(doc);
-  }, [metadataMap]);
+    return computeFallbackCardSize(doc, defaultCardSize);
+  }, [metadataMap, defaultCardSize]);
 
   // Sync LayoutStore to layoutRef
   useEffect(() => {
@@ -371,9 +374,10 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
             const pageCount = metadata?.page_count ?? 1;
 
             const layoutCard = layoutStore.initialize(docId, null, {
-              width: Number.isFinite(size.width) && size.width > 0 ? size.width : 200,
-              height: Number.isFinite(size.height) && size.height > 0 ? size.height : 200,
-              pageCount
+              width: size.width,
+              height: size.height,
+              pageCount,
+              maxSize: defaultCardSize
             });
 
             return (