fix: prevent psd templates leaking across brands

app/api/psd-templates/route.ts

@@ -174,7 +174,7 @@ export async function GET(request: NextRequest) {
     } satisfies AgentPsdTemplateListResponse);
     response.headers.set(
       "Cache-Control",
-      "private, max-age=60, stale-while-revalidate=300"
+      "private, no-store, max-age=0"
     );
     return response;
   } catch (error) {

components/agents/AgentGenerationWorkspaceDarkV2.tsx

@@ -4585,6 +4585,12 @@ export function AgentGenerationWorkspaceDarkV2({
     </Collapsible>
   );
 
+  const currentPsdWorkflowContext = getLatestWorkflowContext?.() ?? workflowContext;
+  const currentPsdBrandName = String(currentPsdWorkflowContext?.brand || "").trim();
+  const currentPsdFifthCategory = String(
+    currentPsdWorkflowContext?.fifthCategory || ""
+  ).trim();
+
   return (
     <div className="flex h-dvh flex-col overflow-hidden bg-black">
       <AgentCanvasTopNavDark
@@ -6433,8 +6439,8 @@ export function AgentGenerationWorkspaceDarkV2({
           resetKeys={[
             isPsdTemplateDialogOpen ? "open" : "closed",
             psdTemplateDialogSourceUrl || "",
-            workflowContext?.brand || "",
-            workflowContext?.fifthCategory || "",
+            currentPsdBrandName,
+            currentPsdFifthCategory,
             psdTemplateDialogMode,
           ]}
           fallback={
@@ -6472,9 +6478,9 @@ export function AgentGenerationWorkspaceDarkV2({
               }
             }}
             sourceImageUrl={psdTemplateDialogSourceUrl}
-            brandName={workflowContext?.brand || null}
-            selectedCategoryNames={[workflowContext?.fifthCategory || ""].filter(Boolean)}
-            sizeInfoText={workflowContext?.summaryText || null}
+            brandName={currentPsdBrandName || null}
+            selectedCategoryNames={[currentPsdFifthCategory].filter(Boolean)}
+            sizeInfoText={currentPsdWorkflowContext?.summaryText || null}
             templateMode={psdTemplateDialogMode}
             onDerivedImageCreated={
               onResultPreviewUrlsChange ? handlePsdDerivedImageCreated : undefined

components/agents/AgentPsdTemplateEditorDialog.tsx

@@ -115,7 +115,7 @@ function buildTemplateListRequestUrl(params?: {
 
 const fetcher = async (url: string): Promise<AgentPsdTemplateListResponse> => {
   try {
-    const response = await fetch(url, { cache: "default" });
+    const response = await fetch(url, { cache: "no-store" });
     const payload = (await response
       .json()
       .catch(() => null)) as Partial<AgentPsdTemplateListResponse> | null;
@@ -511,6 +511,15 @@ function normalizeManagedBrandName(value?: string | null) {
   return normalized;
 }
 
+function matchesTemplateBrand(template: AgentPsdTemplate, brandName?: string | null) {
+  const normalizedBrandName = normalizeManagedBrandName(brandName).toLowerCase();
+  if (!normalizedBrandName) {
+    return true;
+  }
+
+  return normalizeManagedBrandName(template.brandName).toLowerCase() === normalizedBrandName;
+}
+
 function getEffectiveTemplateCategoryTags(
   template: AgentPsdTemplate,
   activeCategoryTags: string[]
@@ -1449,14 +1458,21 @@ export function AgentPsdTemplateEditorDialog({
   );
   const templates = useMemo(
     () =>
-      allTemplates.filter((template) =>
-        matchesTemplateSelectedCategories(
-          template,
-          normalizedSelectedCategoryNames,
-          activeCategoryTags
-        )
-      ),
-    [activeCategoryTags, allTemplates, normalizedSelectedCategoryNames]
+      allTemplates
+        .filter((template) => matchesTemplateBrand(template, normalizedBrandName))
+        .filter((template) =>
+          matchesTemplateSelectedCategories(
+            template,
+            normalizedSelectedCategoryNames,
+            activeCategoryTags
+          )
+        ),
+    [
+      activeCategoryTags,
+      allTemplates,
+      normalizedBrandName,
+      normalizedSelectedCategoryNames,
+    ]
   );
   const [selectedTemplateId, setSelectedTemplateId] = useState<string>("");
   const selectedTemplateDetailRequestUrl = useMemo(() => {