feat: add modelHistory to conversations

modelHistory keeps track of all the models and their respective endpoints that are used in a conversation, so we can quickly fetch the right values to populate our cost table whenever we load a conversation rather than having to recompute the list every time

packages/data-provider/src/schemas.ts

@@ -631,6 +631,7 @@ export const tConversationSchema = z.object({
   modelLabel: z.string().nullable().optional(),
   userLabel: z.string().optional(),
   model: z.string().nullable().optional(),
+  modelHistory: z.array(z.object({ model: z.string(), endpoint: z.string() })).optional(),
   promptPrefix: z.string().nullable().optional(),
   temperature: z.number().nullable().optional(),
   topP: z.number().optional(),

packages/data-schemas/src/schema/defaults.ts

@@ -155,4 +155,14 @@ export const conversationPreset = {
   verbosity: {
     type: String,
   },
+  /** Track all unique models used in this conversation with their endpoints */
+  modelHistory: {
+    type: [
+      {
+        model: { type: String, required: true },
+        endpoint: { type: String, required: true },
+      },
+    ],
+    default: [],
+  },
 };

packages/data-schemas/src/types/convo.ts

@@ -11,6 +11,7 @@ export interface IConversation extends Document {
   endpoint?: string;
   endpointType?: string;
   model?: string;
+  modelHistory?: Array<{ model: string; endpoint: string }>;
   region?: string;
   chatGptLabel?: string;
   examples?: unknown[];