fix: add missing userId field to test fixtures (#128)

Two test helper functions (account-persistence, rotation-strategy)
were missing the required userId field added in #127.

Co-authored-by: icebear0828 <icebear0828@users.noreply.github.com>

src/auth/__tests__/account-persistence.test.ts

@@ -31,6 +31,7 @@ function makeEntry(id: string): AccountEntry {
     refreshToken: null,
     email: `${id}@test.com`,
     accountId: `acct-${id}`,
+    userId: `user-${id}`,
     planType: "free",
     proxyApiKey: `key-${id}`,
     status: "active",

src/auth/__tests__/rotation-strategy.test.ts

@@ -10,6 +10,7 @@ function makeEntry(id: string, overrides?: Partial<AccountEntry["usage"]>): Acco
     refreshToken: null,
     email: `${id}@test.com`,
     accountId: `acct-${id}`,
+    userId: `user-${id}`,
     planType: "free",
     proxyApiKey: `key-${id}`,
     status: "active",