Previously the session_list phase goal said 'The session list may be empty
(no sessions yet) — that is fine' and 'Report done when you can see the
session list screen (even if empty)'. This means an empty sessions list
was treated as a test PASS, so every previous 'fix' was validated against
a test that cannot detect the regression.
Two changes:
1. _precreate_test_session(): calls POST /session via HTTP before the CUA
starts. The session_list phase goal now explicitly names this session and
requires it to be visible — if the app fails to load server sessions,
the phase fails (not passes silently with an empty list).
Falls back gracefully if the server is unreachable at pre-create time.
2. sessions_reload phase (new, critical): after completing the TypeScript
task the test navigates back to the Sessions tab and asserts the list is
non-empty. This catches the other variant of the regression — sessions
vanishing after navigating away from a session and back.
Both phases are now in the critical list, so a failure in either causes the
overall test to report partial/fail instead of success.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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