v0.1.28 - Version bump and editor/throughput updates

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/lib/navigation/client-navigation.ts

@@ -292,15 +292,14 @@ export const baseSearchItems: SearchItem[] = [
  * Callers pass only the modules the current session may see; empty families
  * collapse away so a role with one costing tool never gets an empty group.
  *
- * Workflow-family layout: Dashboard, then an "Operations" group (the calculator,
- * costing, editor, master tools, and throughput), then Ordering and Insights
- * modules. Costing tools live inside Operations for the time being until they
- * grow into a family of their own.
+ * Workflow-family layout: Dashboard, then an "Operations" group (the mix
+ * calculator and throughput) and a "Costing" group (product costing, mix and
+ * ingredient editors, and master tools), then Ordering and Insights modules.
  */
 export function buildClientNavEntries(visible: {
   dashboard?: NavItem | null;
+  operations: NavItem[];
   costing: NavItem[];
-  throughput?: NavItem | null;
   ordering?: NavEntry | null;
   reporting?: NavItem | null;
 }): NavEntry[] {
@@ -310,14 +309,17 @@ export function buildClientNavEntries(visible: {
     entries.push({ kind: 'item', item: visible.dashboard });
   }
 
-  const operationsChildren = [
-    ...visible.costing,
-    ...(visible.throughput ? [visible.throughput] : [])
-  ];
-  if (operationsChildren.length) {
+  if (visible.operations.length) {
     entries.push({
       kind: 'group',
-      group: { id: 'operations', label: 'Operations', icon: Layers, children: operationsChildren }
+      group: { id: 'operations', label: 'Operations', icon: Layers, children: visible.operations }
+    });
+  }
+
+  if (visible.costing.length) {
+    entries.push({
+      kind: 'group',
+      group: { id: 'costing', label: 'Costing', icon: BadgeDollarSign, children: visible.costing }
     });
   }
 
@@ -408,15 +410,15 @@ export function pageMeta(pathname: string): PageMeta {
   }
 
   if (pathname.startsWith('/product-costing')) {
-    return { title: productCostingItem.label, category: 'Operations', icon: productCostingItem.icon };
+    return { title: productCostingItem.label, category: 'Costing', icon: productCostingItem.icon };
   }
 
   if (pathname.startsWith('/editor')) {
-    return { title: editorItem.label, category: 'Operations', icon: editorItem.icon };
+    return { title: editorItem.label, category: 'Costing', icon: editorItem.icon };
   }
 
   if (pathname.startsWith('/ingredients')) {
-    return { title: ingredientsEditorItem.label, category: 'Operations', icon: ingredientsEditorItem.icon };
+    return { title: ingredientsEditorItem.label, category: 'Costing', icon: ingredientsEditorItem.icon };
   }
 
   if (pathname.startsWith('/raw-materials')) {