zen: track model tier in stats

packages/console/function/src/log-processor.ts

@@ -118,11 +118,12 @@ function toLakeEvent(time: string, data: Record<string, unknown>) {
     request: string(data, "request"),
     client: string(data, "client"),
     user_agent: string(data, "user_agent"),
+    model: string(data, "model"),
+    model_tier: string(data, "model.tier"),
     model_variant: string(data, "model.variant"),
     source: string(data, "source"),
     provider: string(data, "provider"),
     provider_model: string(data, "provider.model"),
-    model: string(data, "model"),
     llm_error_code: integer(data, "llm.error.code"),
     llm_error_message: string(data, "llm.error.message"),
     error_response: string(data, "error.response"),

packages/session-ui/sst-env.d.ts

@@ -0,0 +1,10 @@
+/* This file is auto-generated by SST. Do not edit. */
+/* tslint:disable */
+/* eslint-disable */
+/* deno-fmt-ignore-file */
+/* biome-ignore-all lint: auto-generated */
+
+/// <reference path="../../sst-env.d.ts" />
+
+import "sst"
+export {}