fix: Guard against undefined organizationFilter during Redux hydration

Fixes GITBOX-1

Author: ryota-murakami

components/Board/AddRepositoryCombobox.tsx

@@ -60,9 +60,8 @@ export const AddRepositoryCombobox = memo(function AddRepositoryCombobox({
 
   // Filters (organizationFilter persisted to localStorage via Redux)
   const dispatch = useAppDispatch()
-  const organizationFilter = useAppSelector(selectOrganizationFilter)
-  // TODO: Implement topics filter UI
-  // const [topicsFilter, setTopicsFilter] = useState<string[]>([])
+  // Nullish coalescing ensures safe default during Redux hydration (fixes GITBOX-1)
+  const organizationFilter = useAppSelector(selectOrganizationFilter) ?? 'all'
   const [visibilityFilter, setVisibilityFilter] = useState<
     'all' | 'public' | 'private'
   >('all')
@@ -213,13 +212,6 @@ export const AddRepositoryCombobox = memo(function AddRepositoryCombobox({
       filtered = filtered.filter((repo) => repo.visibility === visibilityFilter)
     }
 
-    // TODO: Topics filter
-    // if (topicsFilter.length > 0) {
-    //   filtered = filtered.filter(repo =>
-    //     topicsFilter.some(topic => repo.topics?.includes(topic))
-    //   )
-    // }
-
     return filtered
   }, [userRepos, debouncedQuery, organizationFilter, visibilityFilter])
 

lib/redux/slices/settingsSlice.ts

@@ -91,5 +91,10 @@ export const selectCompactMode = (state: { settings: SettingsState }) =>
   state.settings.compactMode
 export const selectShowArchived = (state: { settings: SettingsState }) =>
   state.settings.showArchived
-export const selectOrganizationFilter = (state: { settings: SettingsState }) =>
-  state.settings.organizationFilter
+/**
+ * Selector for organization filter with safe default
+ * @param state - Redux state with settings slice
+ * @returns Organization filter value, defaults to 'all' if state is hydrating
+ */
+export const selectOrganizationFilter = (state: { settings?: SettingsState }) =>
+  state.settings?.organizationFilter ?? 'all'