[xsahil03x]

What

The "token date / signature invalidates" e2e tests expected the app to fetch a new token. Three now assert what the SDK does on purpose:

Test	Asserts
token date (42) before login	login fails with code 42, no second token request
token date (42) after login	reconnects with the same token once the date is valid (skipped until mock-server#95)
token signature (43) before login	login fails with code 43, no second token request

"token signature invalidates after the user logs in" is removed: a signing secret doesn't go bad mid-session, and the test only timed the SDK's reconnect backoff (about a minute of CI). The env now has assertTokenRequests. UserRobot.assertLoginFailed checks the error the chooser shows.

Why

FLU-1083 asked for a refresh on 41–43. The SDK refreshes on 40 only, and so do iOS, JS and the v11 core (stream_core auth_interceptor.dart, stream_error_code.dart). The backend parses JWTs with no leeway, so 41/42 are clock skew: the same token passes once the server's clock catches up, and a new token from the same issuer would be just as early. 43 is a signing-secret mismatch that no refresh fixes.

The 42-after-login test needs mock-server#95. Until then the mock keeps answering 42 until a new token is fetched, which the real backend doesn't do.

Verification

dart analyze on e2e_app. The two un-skipped tests run in this PR's E2E workflow.

🤖 Generated with Claude Code

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