feat: Introduce a generic inline rename input component for document editing

frontend/src/desktop/DesktopWorkspace.tsx

@@ -62,11 +62,12 @@ const DesktopDocumentContainer: React.FC<React.ComponentProps<typeof DesktopDocu
   onDeselect: (ids: string[]) => void;
   onDocumentActivate?: (id: string, event?: any) => void;
   selection: string[];
+  requestCanvasFocus?: () => void;
 }> = React.memo((props) => {
-  const { layoutCard, selected, onSelect, onDeselect, onDocumentActivate, selection } = props;
+  const { layoutCard, selected, onSelect, onDeselect, onDocumentActivate, selection, requestCanvasFocus } = props;
 
   // We assume layoutCard is always present in this context
-  const cardPointerHandlers = useCardPointer(layoutCard!, !!selected, selection, onSelect, onDeselect, onDocumentActivate);
+  const cardPointerHandlers = useCardPointer(layoutCard!, !!selected, selection, onSelect, onDeselect, onDocumentActivate, requestCanvasFocus);
 
   return (
     <DesktopDocumentCard
@@ -194,7 +195,11 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
   }, [layoutStore.items]);
 
   const handleShellKeyDown = useCallback(() => { }, []);
-  const focusShell = useCallback(() => { }, []);
+  const focusShell = useCallback(() => {
+    if (containerRef.current) {
+      containerRef.current.focus();
+    }
+  }, []);
 
   // Tag Interactions
   const tagInteractions = useDeskTagInteractions({
@@ -209,6 +214,11 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
 
   useEffect(() => {
     const handleWindowKeyDown = (e: KeyboardEvent) => {
+      // Only handle events if the container itself is the target (focused)
+      if (e.target !== containerRef.current) {
+        return;
+      }
+
       // Space preview logic
       if (e.code === 'Space' && selectedDocumentIds.length > 0) {
         const lastId = selectedDocumentIds[selectedDocumentIds.length - 1];
@@ -422,6 +432,7 @@ const DesktopWorkspaceContent: React.FC<DesktopWorkspaceProps> = ({
                   handleSelectionChange(Array.from(newSelection));
                 }}
                 selection={selectedDocumentIds}
+                requestCanvasFocus={focusShell}
               />
             );
           })}