first commit

CADAM-master/shared/models.ts

@@ -0,0 +1,12 @@
+import type { Model } from './types';
+
+// Model ids persisted in conversation settings (and submitted by stale
+// clients) outlive the picker catalog. Map retired ids to their successors
+// so old conversations keep resolving to a routable, correctly priced model.
+export const LEGACY_MODEL_IDS: Record<string, Model> = {
+  'openai/gpt-5.5': 'openai/gpt-5.6-sol',
+};
+
+export function normalizeModelId(model: Model): Model {
+  return LEGACY_MODEL_IDS[model] ?? model;
+}