feat: paint cached workspace config from indexeddb on boot

app/javascript/dashboard/helper/CacheHelper/cacheableModels.js

@@ -0,0 +1,17 @@
+// Single source of truth for IDB-cached workspace config.
+//
+// Each entry must keep `name` equal to the Rails `Model.name.underscore` value
+// so the server's `cache_keys` payload (and the IDB object store name) lines up
+// with what the client looks up.
+//
+// `setMutation` is the full commit path used to seed Vuex from IDB (boot
+// paint) and to swap in refetched rows (event-driven revalidation). Every
+// SET_* mutation must REPLACE its records (not merge) so rows deleted
+// server-side never survive as phantoms.
+export const cacheableModels = [
+  { name: 'inbox', setMutation: 'inboxes/SET_INBOXES' },
+  { name: 'label', setMutation: 'labels/SET_LABELS' },
+  { name: 'team', setMutation: 'teams/SET_TEAMS' },
+];
+
+export const cacheableModelNames = cacheableModels.map(model => model.name);