feat: centraliser le moteur IA via le Référentiel

server/_core/aiReferenceClient.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it, vi } from "vitest";
+import { ENV } from "./env";
+import { invokeSelectedReference } from "./aiReferenceClient";
+
+describe("client Référentiel IA", () => {
+  it("transmet seulement le payload métier et restitue la trace résolue", async () => {
+    ENV.aiReferentielUrl = "https://referentiel-ia.recette.santinova-soft.org";
+    ENV.aiReferentielToken = "token-de-test";
+    const fetcher = vi.fn(async () => new Response(JSON.stringify({ choices: [] }), {
+      status: 200,
+      headers: {
+        "x-santinova-ia-provider": "Manus",
+        "x-santinova-ia-model": "gemini-2.5-flash",
+        "x-santinova-ia-transport": "manus-forge",
+        "x-santinova-ia-origin": "manual",
+      },
+    }));
+
+    const response = await invokeSelectedReference<{ choices: unknown[] }>({ messages: [{ role: "user", content: "test" }] }, fetcher as typeof fetch);
+
+    expect(response.choices).toEqual([]);
+    expect(fetcher).toHaveBeenCalledOnce();
+    const [, options] = fetcher.mock.calls[0] as [string, RequestInit];
+    expect(JSON.parse(String(options.body))).toEqual({ payload: { messages: [{ role: "user", content: "test" }] } });
+  });
+});