fix(stats): canonicalize DeepSeek Flash usage (#48373)

packages/stats/core/src/domain/inference.test.ts

@@ -39,6 +39,7 @@ describe("inference stat normalization", () => {
   })
 
   test("merges renamed models under their current name", () => {
+    expect(statModel("deepseek-flash", "")).toBe("deepseek-v4.1-flash")
     expect(statModel("x-preview-f", "")).toBe("ox-alpha")
     expect(statModel("xiaomi/mimo-v2.5", "")).toBe("mimo-v2.5")
     expect(toModelAggregate(aggregate("x-preview-f", "openai"))).toMatchObject([

packages/stats/core/src/domain/model-normalization.ts

@@ -14,6 +14,7 @@ export const MODEL_AUTHOR_RULES = [
 ] as const
 export const EXCLUDED_MODELS = new Set(["alpha-gpt-next"])
 export const MODEL_NAME_ALIASES: Record<string, string> = {
+  "deepseek-flash": "deepseek-v4.1-flash",
   "x-preview-f": "ox-alpha",
   "xiaomi/mimo-v2.5": "mimo-v2.5",
 }