fix: reset loading flags on error in scriptGeneratorStore

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/store/scriptGeneratorStore.ts

@@ -65,6 +65,7 @@ export const useScriptGeneratorStore = create<ScriptGeneratorState>()((set, get)
 
   loadTemplates: async () => {
     set({ isLoadingTemplates: true })
+    try {
       const { activeCategoryId, categories, searchQuery } = get()
       const category = categories.find(c => c.id === activeCategoryId)
       const params: { category_slug?: string; search?: string } = {}
@@ -72,10 +73,14 @@ export const useScriptGeneratorStore = create<ScriptGeneratorState>()((set, get)
       if (searchQuery) params.search = searchQuery
       const templates = await scriptsApi.getTemplates(params)
       set({ templates, isLoadingTemplates: false })
+    } catch {
+      set({ isLoadingTemplates: false })
+    }
   },
 
   selectTemplate: async (id: string) => {
     set({ isLoadingDetail: true })
+    try {
       const detail = await scriptsApi.getTemplateDetail(id)
       // Populate paramValues from parameter defaults
       const schema = detail.parameters_schema as ScriptParametersSchema
@@ -97,6 +102,9 @@ export const useScriptGeneratorStore = create<ScriptGeneratorState>()((set, get)
         generateError: null,
         isLoadingDetail: false,
       })
+    } catch {
+      set({ isLoadingDetail: false })
+    }
   },
 
   setCategory: (id: string | null) => {