fix restore node size, and add feeback

.gitignore

@@ -13,4 +13,5 @@ frontend/node_modules/
 frontend/dist/
 .venv/
 sessions/
-frontend/coverage/
+frontend/coverage/
+usage_stats.json

frontend/src/App.tsx

@@ -2492,6 +2492,9 @@ function Flow() {
               <button className="btn" onClick={() => { openDocByFilename('getting-started.md'); closeMenu(); }} title="Getting started guide">
                 ? Help
               </button>
+              <a className="btn" href="https://github.com/VIPQualityPost/tono/issues" target="_blank" rel="noopener noreferrer" onClick={closeMenu} title="Report a bug or request a feature">
+                ↗ Feedback
+              </a>
               {updateInfo && (
                 <>
                   <hr className="floating-menu-divider" />

frontend/src/CustomNode.tsx

@@ -999,6 +999,12 @@ function CustomNode({ id, data }: { id: string; data: NodeData }) {
   const def = data.definition;
   const scalarDisplay = formatScalarDisplay(data.scalarValue);
   const processingTimeText = formatProcessingTime(data.processingTimeMs);
+  const nodeWidth = useStore(
+    useCallback((s: any) => {
+      const node = s.nodeLookup.get(id);
+      return node?.width ?? undefined;
+    }, [id]),
+  );
   const connectedPathInfo = useStore(
     useCallback((s: any) => getConnectedOutputInfo(s, id, 'path'), [id]),
   );
@@ -1206,7 +1212,7 @@ function CustomNode({ id, data }: { id: string; data: NodeData }) {
   return (
     <>
       {ctx?.executingNodeId === id && <div className="node-executing-glow" aria-hidden="true" />}
-    <div className={`custom-node${data.error ? ' node-error' : ''}`}>
+    <div className={`custom-node${data.error ? ' node-error' : ''}`} style={nodeWidth ? { width: nodeWidth } : undefined}>
       {/* Title */}
       <div className="node-title drag-handle" style={{ background: catColor }}>
         <div className="node-title-left">

frontend/src/workflowHydration.ts

@@ -42,6 +42,10 @@ export function hydrateWorkflowState(data: SerializedWorkflow | null | undefined
   const nodes = sortNodesForParentOrder(loadedNodes.map((node) => {
     const definition = mergeDefinition(node.data, defs);
 
+    const restoredStyle = { ...(node.style || {}) };
+    if (node.width && !restoredStyle.width) restoredStyle.width = node.width;
+    if (node.height && !restoredStyle.height) restoredStyle.height = node.height;
+
     return {
       ...node,
       type: node.type || 'custom',
@@ -49,7 +53,7 @@ export function hydrateWorkflowState(data: SerializedWorkflow | null | undefined
       parentId: node.parentId,
       extent: node.extent,
       hidden: !!node.hidden,
-      style: node.style,
+      style: restoredStyle,
       dragHandle: node.dragHandle || '.drag-handle',
       data: {
         ...node.data,