test(dojo/e2e): note the aimock fixture source in the MAF dotnet a2ui specs

The asserted data values are deterministic only because aimock serves
recorded fixtures; say so at the top of each spec (matching the recovery
spec's existing convention) so nobody runs them against a live model and
chases phantom flakes.

Author: ranst91

apps/dojo/e2e/tests/microsoftAgentFrameworkDotnetTests/a2uiAdvanced.spec.ts

@@ -1,6 +1,10 @@
 import { test } from "../../test-isolation-helper";
 import { A2UIPage } from "../../featurePages/A2UIPage";
 
+// The exact names asserted below (The Ritz, …) come from the deterministic
+// aimock fixtures (apps/dojo/e2e/aimock-setup.ts); these specs are not meant
+// to run against a live model.
+
 test("[Microsoft Agent Framework .NET] A2UI Advanced renders surface with hotel comparison", async ({
   page,
 }) => {

apps/dojo/e2e/tests/microsoftAgentFrameworkDotnetTests/a2uiDynamicSchema.spec.ts

@@ -1,6 +1,10 @@
 import { test, expect } from "../../test-isolation-helper";
 import { A2UIPage } from "../../featurePages/A2UIPage";
 
+// The exact data values asserted below ($450/night, 4.8, Sony WH-1000XM5, …)
+// come from the deterministic aimock fixtures (apps/dojo/e2e/aimock-setup.ts);
+// these specs are not meant to run against a live model.
+
 test("[Microsoft Agent Framework .NET] A2UI Dynamic Schema renders hotel comparison surface", async ({
   page,
 }) => {

apps/dojo/e2e/tests/microsoftAgentFrameworkDotnetTests/a2uiFixedSchema.spec.ts

@@ -1,6 +1,10 @@
 import { test, expect } from "../../test-isolation-helper";
 import { A2UIPage } from "../../featurePages/A2UIPage";
 
+// The exact data values asserted below (UA 123, $289, …) come from the
+// deterministic aimock fixtures (apps/dojo/e2e/aimock-setup.ts); these specs
+// are not meant to run against a live model.
+
 test("[Microsoft Agent Framework .NET] A2UI Fixed Schema renders flight search surface", async ({
   page,
 }) => {