test(chat): keep ownership fixture sessions current

Issue sessions relative to the current clock so ownership claims do not fail after a hardcoded fixture date expires. Preserve all ownership and release assertions.

Co-authored-by: GPT-6 Astra <noreply@openai.com>

Author: 2 people

apps/server/src/chat/hosted.test.ts

@@ -70,7 +70,7 @@ function grant(accessToken: string): GitHubTokenGrant {
 
 describe("hosted Copilot ownership", () => {
 	it("keeps the first invoking login session until it is explicitly released", async () => {
-		let now = new Date("2026-08-13T12:00:00.000Z");
+		let now = new Date();
 		let storage = new MemoryStorage();
 		let key = new Uint8Array(32).fill(9);
 		for (let [id, login] of [["U_ana", "ana"], ["U_bob", "bob"]]) {