Refactor stock API to replace numeric flags with boolean values, add getItemLabel endpoint, and update tests/documentation

src/features/stock/stock-list-page.js

@@ -924,7 +924,7 @@ export function stockListPageData(store) {
         } else {
           initTasks.push(
             this.loadGroupedEntries({
-              expanded: 0,
+              expanded: false,
               resetVisible: !restoredContext,
             }),
           );
@@ -1309,7 +1309,7 @@ export function stockListPageData(store) {
 
       if (mode === 'grouped') {
         if (!this.groupedLoaded) {
-          await this.loadGroupedEntries({ expanded: 0, resetVisible: true });
+          await this.loadGroupedEntries({ expanded: false, resetVisible: true });
         }
         this.hydrateGroupedEntriesInBackground().catch(() => {});
         return;
@@ -1325,7 +1325,7 @@ export function stockListPageData(store) {
         : this.itemsLoaded);
 
       if (this.viewMode === 'grouped') {
-        await this.loadGroupedEntries({ expanded: 0, background: useBackground });
+        await this.loadGroupedEntries({ expanded: false, background: useBackground });
         this.hydrateGroupedEntriesInBackground({ force: true }).catch(() => {});
         return;
       }
@@ -1417,7 +1417,7 @@ export function stockListPageData(store) {
       this.invalidateMemo();
       this.persistRuntimeCache();
     },
-    async loadGroupedEntries({ expanded = 1, background = false, resetVisible = false } = {}) {
+    async loadGroupedEntries({ expanded = true, background = false, resetVisible = false } = {}) {
       if (!store.isConnected) {
         return;
       }
@@ -1432,7 +1432,7 @@ export function stockListPageData(store) {
 
       try {
         const loadedGroups = await listGroupedStockEntries(store, { expanded });
-        if (expanded === 0) {
+        if (!expanded) {
           this.applyGroupedSummary(loadedGroups, { resetVisible });
           return;
         }
@@ -1461,7 +1461,7 @@ export function stockListPageData(store) {
 
       this.groupedHydrating = true;
       try {
-        await this.loadGroupedEntries({ expanded: 1, background: true });
+        await this.loadGroupedEntries({ expanded: true, background: true });
       } finally {
         this.groupedHydrating = false;
       }
@@ -1473,7 +1473,7 @@ export function stockListPageData(store) {
       }
       if (this.groupedLoaded) {
         tasks.push(
-          this.loadGroupedEntries({ expanded: 0, background: true }).then(() =>
+          this.loadGroupedEntries({ expanded: false, background: true }).then(() =>
             this.hydrateGroupedEntriesInBackground({ force: true }),
           ),
         );
@@ -2269,7 +2269,7 @@ export function stockListPageData(store) {
             ? `${item.name} was already out of stock and removed from the group.`
             : `${item.name} was ${actionLabel} and removed from the group.`,
         });
-        this.loadGroupedEntries({ expanded: 0, background: true }).catch(() => {});
+        this.loadGroupedEntries({ expanded: false, background: true }).catch(() => {});
       } catch (error) {
         this.editErrors[item.id] = error.message || 'Removal failed.';
       }